SCHEDULE 14A INFORMATION

                    Proxy Statement Pursuant to Section 14(a) of
           the Securities Exchange Act of 1934 (Amendment No.      )


              
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                              POWER-ONE, INC.
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                                [POWER-ONE LOGO]

                                740 CALLE PLANO
                          CAMARILLO, CALIFORNIA 93012

             ------------------------------------------------------

                    NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

                    ----------------------------------------

TO OUR STOCKHOLDERS:


                   
WHAT:               Our Annual Meeting of Stockholders for Fiscal Year 2000

WHEN:               May 3, 2001 at 10:00 a.m., local time

WHERE:              The Renaissance Agoura Hills Hotel
                    30100 Agoura Road
                    Agoura Hills, California 91301-2004

WHY:                At this meeting, we plan to:

                    1.   Elect two Class I Directors for a three-year term.

                    2.   Ratify the appointment of Deloitte & Touche LLP as
                         independent auditors of Power-One for the 2001 fiscal year.

                    3.   Transact any other business which may properly be presented
                         at the meeting or any adjournment.


    Only stockholders of record at the close of business on March 15, 2001 will
receive notice of the Annual Meeting and be eligible to vote at the meeting.

    All stockholders are encouraged to attend the Annual Meeting. Whether or not
you plan to attend, please promptly register your votes to ensure that your
shares are represented at the Annual Meeting.

    Please refer to your Proxy card for various voting methods. Please vote as
soon as possible. We have enclosed a postage-prepaid envelope for your
convenience if you choose to use the enclosed Proxy card. Please note: If you
attend the Annual Meeting, you may still vote in person at the meeting even if
you previously returned or voted a Proxy.

                                          By Order of the Board of Directors,

                                          /s/ RANDALL H. HOLLIDAY
                                          Randall H. Holliday

                                          SECRETARY

Camarillo, California
April 4, 2001

                                POWER-ONE, INC.
                                740 CALLE PLANO
                          CAMARILLO, CALIFORNIA 93012
                                 (805) 987-8741
                                PROXY STATEMENT

    The Board of Directors of Power-One, Inc. seeks your Proxy for use at our
Annual Meeting of Stockholders. We will hold the meeting according to our Notice
of Annual Meeting, unless we adjourn to a later date and/or time.

    This proxy statement and the accompanying Notice of Annual Meeting discuss
the purposes of the Annual Meeting. We have sent these proxy solicitation
materials on or about April 4, 2001 to all stockholders entitled to vote at the
Annual Meeting.

                                       2

*EACH SHARE OF COMMON STOCK HAS ONE VOTE ON ALL MATTERS SUBMITTED TO OUR
  STOCKHOLDERS AT THE ANNUAL MEETING. STOCKHOLDERS OF RECORD AS OF THE CLOSE OF
  BUSINESS ON MARCH 15, 2001 WILL RECEIVE NOTICE OF AND MAY VOTE AT THE ANNUAL
  MEETING. ELIGIBLE STOCKHOLDERS MAY VOTE USING ONE OF THE FOLLOWING METHODS:

    - ONLINE VIA THE INTERNET, IF AVAILABLE.

    - BY TELEPHONE, IF AVAILABLE.

    - BY MARKING, SIGNING, AND RETURNING THE PROXY CARD.

    There were 78,567,095 shares of our common stock issued and outstanding as
of March 15, 2001. The closing sale price on that date was $18.00 per share. Our
common stock is traded on the Nasdaq National Market-Registered Trademark- under
the symbol "PWER."

    The presence at the Annual Meeting, in person or by proxy, of the holders of
a majority of the outstanding shares of our common stock will constitute a
quorum for the meeting. Assuming such a quorum is present, the affirmative votes
of a majority of votes cast is necessary to approve the proposals presented to
our stockholders at the Annual Meeting.

    The inspector of elections that we appoint will count all votes cast in
person or by proxy at the Annual Meeting. We will treat abstentions as shares
that are present and entitled to vote to determine the presence of a quorum, but
not as votes cast to determine the approval of any matter submitted to a vote of
the stockholders.

    If you hold your shares in "street name" through a broker or other nominee,
and you do not give your broker or nominee specific instructions on how to vote
your shares, your broker or nominee will be permitted to exercise voting
discretion with respect to the matters proposed to be acted upon.

                                       3

                                POWER-ONE, INC.
                                740 CALLE PLANO
                          CAMARILLO, CALIFORNIA 93012
                                 (805) 987-8741
                                PROXY STATEMENT

                                       4

                                   PROPOSAL 2
                    RATIFICATION OF APPOINTMENT OF AUDITORS

    The Board of Directors, following the recommendation of the Audit Committee,
has appointed Deloitte & Touche LLP, independent auditors, to audit our
consolidated financial statements for the 2001 fiscal year. Services provided to
us and our subsidiaries by Deloitte & Touche LLP in 2000 included the
examination of our financial statements for the fiscal year ended December 31,
2000, limited reviews of quarterly reports, services related to filings with the
Securities and Exchange Commission, consultations on various tax matters,
services provided in connection with our acquisitions of HC Power, Inc. and
Powec AS

and general accounting consultation. This appointment is being presented to the
stockholders for ratification at the meeting. If the appointment is not
ratified, the Board of Directors will reconsider its selection.

    Deloitte & Touche LLP has audited our consolidated financial statements
since 1993.

    Representatives of Deloitte & Touche LLP are expected to be present at the
meeting. They will have the opportunity to address the audience at the meeting,
and will be available to answer appropriate questions from stockholders.

                                 RECOMMENDATION

    THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE RATIFICATION OF DELOITTE &
TOUCHE LLP AS POWER-ONE'S INDEPENDENT AUDITORS FOR 2001. WE WILL VOTE PROXIES
RECEIVED BY US IN FAVOR OF THE RATIFICATION OF DELOITTE & TOUCHE LLP UNLESS A
CONTRARY CHOICE IS INDICATED.

                                       9

                         EXECUTIVE OFFICER COMPENSATION

    All references to shares and options in this Section have been adjusted to
reflect the three-for-two and two-for-one splits to our common stock effected
during 2000.

                           SUMMARY COMPENSATION TABLE

    The following table provides information for our last three fiscal years
regarding all compensation paid to or earned by our Chief Executive Officer and
each of our four other most highly compensated executive officers other than the
Chief Executive Officer who served as executive officers of Power-One as of
December 31, 2000 and whose salary plus bonus exceeded $100,000 (together with
the Chief Executive Officer, the "Top 5 Compensated Executive Officers"):


--------------------------------------------------------------------------------------------------------
                                                                               LONG-TERM      ALL OTHER
               OFFICERS                              ANNUAL COMPENSATION     COMPENSATION(1) COMPENSATION
                                                                              
--------------------------------------------------------------------------------------------------------
                                                                              OPTIONS
          NAME AND POSITION               YEAR      SALARY     BONUS(2)       (SHARES)
                                                                              
--------------------------------------------------------------------------------------------------------
Steven J. Goldman,                          2000   $368,708     $359,867        105,000          *
Chairman and Chief Executive Officer        1999   $331,239     $212,571         --              *
                                            1998   $313,008       --            195,000(3)       *
--------------------------------------------------------------------------------------------------------
William T. Yeates,                          2000   $295,014     $289,193        750,000          *
President and Chief Operating
Officer(4)
--------------------------------------------------------------------------------------------------------
Eddie K. Schnopp,                           2000   $161,241     $124,874        210,000(5)       *
Senior Vice President--Finance and          1999   $144,227     $ 90,226         --              *
Chief Financial Officer                     1998   $135,725       --            225,000(6)       *
--------------------------------------------------------------------------------------------------------
Dennis R. Roark,                            2000   $177,946     $140,690        105,000          *
Executive Vice President and Chief          1999   $162,454     $103,928         --              *
Technology Officer                          1998   $158,612       --            120,000(7)       *
--------------------------------------------------------------------------------------------------------
David J. Hage,                              2000   $156,411     $124,874        105,000          *
President--AC and DC Power Systems          1999   $144,879     $137,226         --              *
Division                                    1998   $140,158     $ 30,000(8)     120,000(7)       *
--------------------------------------------------------------------------------------------------------


*   Less than $50,000 or 10% of the total salary and bonus for the year
    indicated.

(1) Power-One has not granted any Restricted Stock Awards, SARs or LTIPs to any
    of the Top 5 Compensated Executive Officers.

(2) Bonuses reflect amounts earned in the fiscal year indicated, but paid in the
    following year.

(3) Mr. Goldman did not participate in our October 1998 option repricing.

(4) Mr. Yeates joined us on January 13, 2000.

(5) Total includes 105,000 shares underlying options granted in 2000 to Donna
    Koep who is our Senior Vice President--Human Resources and is married to
    Mr. Schnopp. Mr. Schnopp disclaims beneficial ownership of such shares.

(6) 120,000 shares underlying options granted to Mr. Schnopp were reduced by 10%
    to 108,000 in connection with our October 1998 option repricing. Total
    includes 105,000 shares underlying options granted in 1998 to Ms. Koep,
    which were also reduced by 10%, to 94,500, in connection with the repricing.
    Mr. Schnopp disclaims beneficial ownership of such shares.

(7) Reduced by 10% to 108,000 in connection with our October 1998 option
    repricing.

(8) Although bonuses were not paid to our other executive officers for 1998,
    Mr. Hage served as our Vice President--Sales and Marketing during that year
    and earned the amount indicated under our Sales Bonus Plan.

                                       10

                         EXECUTIVE OFFICER COMPENSATION

                       STOCK OPTION GRANTS AND EXERCISES
                                  FOR OFFICERS

                            STOCK OPTION GRANTS 2000

    This table shows grants made in 2000 to our Top 5 Compensated Executive
Officers, and hypothetical gains for the options at the end of their respective
ten-year terms. We have arbitrarily assumed annualized growth rates of the
market price of our common stock over the exercise price of the option of five
percent (5%) and ten percent (10%), running from the date the option was granted
to the end of the option term. Actual gains, if any, on option exercises depend
on the future performance of our common stock and overall market conditions.

                              INDIVIDUAL GRANTS(1)


--------------------------------------------------------------------------------------------------------------
                                                                                        POTENTIAL REALIZABLE
                                                                                               VALUE
                                               PERCENT OF                             AT ASSUMED ANNUAL RATES
                                               TOTAL OPTIONS   EXERCISE                    OF STOCK PRICE
                                    OPTION     GRANTED TO      OR BASE                      APPRECIATION
                                    SHARES     EMPLOYEES IN     PRICE      EXPIRATION     FOR OPTION TERM
             OFFICER               GRANTED(#)  FISCAL YEAR     ($/SHARE)    DATE        5%($)        10%($)
--------------------------------------------------------------------------------------------------------------
                                                                                 
Steven J. Goldman                   105,000         2.47%       $20.88     4/17/10    $1,378,789   $ 3,494,121
--------------------------------------------------------------------------------------------------------------
William T. Yeates                   675,000        15.86%       $11.17     1/13/10    $4,741,708   $12,016,420
                                     75,000         1.76%       $17.54     3/30/10    $  827,311   $ 2,096,568
--------------------------------------------------------------------------------------------------------------
Eddie K. Schnopp (2)                210,000         4.93%       $20.88     4/17/10    $2,757,577   $ 6,988,242
--------------------------------------------------------------------------------------------------------------
Dennis R. Roark                     105,000         2.47%       $20.88     4/17/10    $1,378,789   $ 3,494,121
--------------------------------------------------------------------------------------------------------------
David J. Hage                       105,000         2.47%       $20.88     4/17/10    $1,378,789   $ 3,494,121
--------------------------------------------------------------------------------------------------------------


(1) Power-One did not grant any SARs in 2000 to any of the Top 5 Compensated
    Executive Officers.

(2) Includes 105,000 options granted to Ms. Koep. Mr. Schnopp disclaims
    beneficial ownership of such shares.

         AGGREGATE OPTION EXERCISES IN 2000 AND YEAR-END OPTION VALUES

    This table shows all stock options exercised by the Top 5 Compensated
Executive Officers for 2000. The "Value Realized" column reflects the difference
between the market value of the underlying securities at the actual exercise
date and the exercise price of the options. The "Value of unexercised
in-the-money options at 2000 year-end" column reflects the difference between
the market value and the exercise price of in-the-money options at the end of
2000.


----------------------------------------------------------------------------------------------------------------
                                                                                         VALUE OF UNEXERCISED
                                  SHARES                                                        IN-THE-
                                  ACQUIRED                   NUMBER OF UNEXERCISED       MONEY OPTIONS AT 2000
                                    ON          VALUE      OPTIONS AT 2000 YEAR-END           YEAR-END(1)
              NAME                EXERCISE(#) REALIZED($)  EXERCISABLE/UNEXERCISABLE   EXERCISABLE/UNEXERCISABLE
                                                                                   
----------------------------------------------------------------------------------------------------------------
Steven J. Goldman                   --            --         299,400       246,600     $11,330,627   $ 6,947,309
----------------------------------------------------------------------------------------------------------------
William T. Yeates                   --            --           --          750,000         --        $20,629,125
----------------------------------------------------------------------------------------------------------------
Eddie K. Schnopp                    --            --         297,000       355,500     $11,436,323   $ 9,333,559
----------------------------------------------------------------------------------------------------------------
Dennis R. Roark                     --            --         191,700       186,300     $ 7,397,156   $ 4,993,069
----------------------------------------------------------------------------------------------------------------
David J. Hage                      73,500     $4,425,511     68,700        186,300     $ 2,644,579   $ 4,993,069
----------------------------------------------------------------------------------------------------------------


(1) Total value of exercisable and unexercisable options based on the market
    value of our common stock on December 29, 2000 ($39.31 per share).

(2) Exercisable total includes 132,300 shares underlying options held by
    Ms. Koep; unexercisable total includes 172,200 shares underlying options
    held by Ms. Koep. Mr. Schnopp disclaims beneficial ownership of these
    shares.

                                       11

                         EXECUTIVE OFFICER COMPENSATION

                EMPLOYMENT CONTRACTS, TERMINATION OF EMPLOYMENT,
            CHANGE-IN-CONTROL ARRANGEMENTS AND CERTAIN TRANSACTIONS

    William T. Yeates serves as our President and Chief Operating Officer under
the terms set forth in a letter from Mr. Goldman. Pursuant to the letter, in
addition to his salary and our standard employee benefits package, Mr. Yeates is
eligible for a bonus based on the achievement of specific performance goals.

    Pursuant to the letter to Mr. Yeates, he was also granted non-qualified
stock options to purchase an aggregate of 675,000 shares of our common stock. Of
these, 450,000 options become exercisable over four years at the rate of 25% per
year; the remaining 225,000 vest and become exercisable on December 31, 2001.

    In addition, we made certain loans to Mr. Yeates. A loan in the amount of
$100,000, and additional loans to cover certain relocation expenses, do not
accrue interest and will be forgiven on the third anniversary of Mr. Yeates'
hire if he is still employed by us, or upon his death, permanent disability or
termination for other than cause. A separate loan in the amount of $660,000
bears interest at the rate of 5.5% per annum and is due and payable on
January 13, 2004.

    Finally, if we experience a change in control, as defined in the letter to
include certain mergers and other triggering events, Mr. Yeates will receive a
one-time payment equal to twice his most recent salary and annual bonus and up
to 337,500 of his stock options will vest and become immediately exercisable.

            SECTION 16(a) BENEFICIAL OWNERSHIP REPORTING COMPLIANCE

    Section 16(a) of the Exchange Act requires our officers and directors and
persons who own more than 10% of a registered class of our equity securities to
file reports of ownership and changes in ownership with the SEC and NASDAQ.
These persons are required by regulation of the SEC to furnish us with copies of
all Section 16(a) forms they file.

    Based solely on our review of the copies of such forms that we received, or
written representations from certain reporting persons, we believe that during
2000 our officers, directors and greater than 10% beneficial owners complied
with all applicable Section 16(a) filing requirements.

           COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION(*)

    The Compensation Committee consists of Mr. Jacoby, Dr. Brandli and
Mr. Walters, each of whom is an independent, non-employee director. The
Compensation Committee determines the cash portion of the Chief Executive
Officer's salary, sets the range within which the other executive officers'

salaries should vary and determines equity awards for all executive officers.

------------------------

*   This section of the proxy statement shall not be deemed to be incorporated
    by reference by any general statement incorporating by reference this proxy
    statement into any of our filings pursuant to the Securities Act of 1933, as
    amended, or the Securities Exchange Act of 1934, as amended, except to the
    extent we specifically incorporate this section by reference therein, and
    shall not be deemed soliciting material or otherwise deemed filed under
    either such Acts.

                                       12

                         EXECUTIVE OFFICER COMPENSATION

    Our executive compensation program is designed to attract, retain and
motivate the senior executive talent required to ensure our success. The program
also aims to support the creation of stockholder value and ensure that pay is
consistent with performance. When establishing salaries, bonuses and stock or
equity awards for executive officers, the Compensation Committee considers the
individual's role, leadership responsibilities and performance during the last
year and the amount of compensation paid to executive officers in similar
positions at companies that compete with us for executives.

    The Compensation Committee's belief has been that the company's performance
generally is reflected in its stock price. Therefore, the company has paid base
salaries and cash bonuses that have been in the lower half for executive
officers at similar companies, but supplements cash compensation with equity
awards that are tied to the performance of the company's stock. This emphasis on
the value of the company's stock price has generally provided our executive
officers with competitive overall pay packages.

    Prior to determining compensation formulas for 2001, the Compensation
Committee expects to retain the services of a compensation consulting firm to
assist it in reviewing the compensation levels of Power One's executive
officers, as well as the specific compensation plans offered by the company.
This will help ensure that the interests of both the company and its
stockholders are met.

    The Compensation Committee may consider other forms of compensation, both
short- and long-term, in addition to those described below, designed to link
compensation with achieving financial targets.

    BASE SALARY.  The Compensation Committee set Mr. Goldman's salary for 2000.
The increase in Mr. Goldman's salary was due to our success in meeting financial
targets in 1999. In addition to meeting or exceeding our operational targets and
projected earnings per share, we also completed the acquisition of International
Power Devices, Inc. and a successful offering of our common stock. The
Compensation Committee also authorized Mr. Goldman to increase our other
executive officers' salaries by 4% to 10% in his discretion based on the factors
previously discussed.

    MANAGEMENT BONUS PLAN.  Under our Management Bonus Plan, our executive
officers can earn bonuses based on the company's attaining specified EBITDA
objectives during a particular fiscal year. Under this plan, which covers
certain key employees, our executive officers can earn bonuses in amounts up to
predetermined percentages of their base salaries. Mr. Goldman and Mr. Yeates are
eligible to receive bonuses of up to 100% of their salaries. The remainder of
our executive officers can earn bonuses of up to 80% of their salaries. Bonuses
are based on actual EBITDA realized by the company during any fiscal year as a
percentage of planned EBITDA. Our executive officers were awarded bonuses under
the Management Bonus Plan for 2000, as indicated on the Summary Compensation
Table on page 9.

    DISCRETIONARY BONUS PLAN.  Under the Discretionary Bonus Plan, our executive
officers can receive, at the sole discretion of the Compensation Committee, a
bonus of up to 50% of the executive's base salary. This bonus is based upon the
Compensation Committee's determination of an individual's contribution to the
company in conjunction with the company's (i) significantly exceeding projected
earnings per share, (ii) having accelerated sales growth, (iii) executing
acquisitions in an efficient manner, or (iv) achieving such other goals as the
Board of Directors or the Compensation Committee may determine. The Compensation
Committee did not award our executive officers any bonuses under the
Discretionary Bonus Plan for 2000.

    EQUITY BASED COMPENSATION.  The Compensation Committee will provide
long-term incentives linked to an increase in stock value by awarding, in
amounts, to persons, and at times it believes appropriate, stock options at the
fair

                                       13

                         EXECUTIVE OFFICER COMPENSATION

market value on the date of grant. Outstanding stock options of our executive
officers which were granted in 1996 and 1998 are exercisable in various
increments on the third through seventh anniversaries of the date of grant, but
such options may be exercisable on earlier dates if we meet certain financial
goals. In 1997 and 1999 we reached these financial targets, and 20% of each
officer's outstanding options became exercisable. Financial targets were reached
again in 2000 and, as a result, an additional 40% of outstanding stock options
will become exercisable this year, including normal vesting. All options granted
after 1998 are exercisable in 25% increments over four years, unless otherwise
approved by the Compensation Committee.

    In 2000 the Compensation Committee recommended, and the Board of Directors
approved, an amendment to our Amended and Restated 1996 Stock Incentive Plan
that allows the Chairman to grant options, other than to officers or directors,
at fair market value within aggregate limits approved by the Compensation
Committee. The aggregate limit established by the Compensation Committee for
2000 was 3,600,000 options.

    THE DEDUCTIBILITY OF EXECUTIVE COMPENSATION. Section 162(m) of the Internal
Revenue Code does not permit us to deduct cash compensation in excess of
$1 million paid to the Chief Executive Officer and the four highest compensated
executive officers during any taxable year, unless such compensation meets
certain requirements. We believe that our stock incentive plan and our
Management Bonus Plan (as previously described) comply with the rules under
Section 162(m) for treatment as performance-based compensation, allowing us to
deduct fully compensation paid to executives under these plans.

          COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION

    No member of our Compensation Committee has a relationship that would
constitute an interlocking relationship with executive officers or directors of
another entity.

                                          Jon E.M. Jacoby
                                          Dr. Hanspeter Brandli
                                          Jay Walters

                                       14

         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

    The following table presents certain information about beneficial ownership
of our common stock as of March 15, 2001, by each person (or group of affiliated
persons) who is known by us to own beneficially more than 5% of our common
stock, each director, each executive officer named in the Executive Officer
Compensation table, and all directors and executive officers as a group. Except
as indicated in the footnotes to this table, the persons named in the table have
sole voting and investment power with respect to all shares of common stock
shown as beneficially owned by them, subject to community property laws where
applicable.



NAME OF BENEFICIAL OWNER(1)                                   NUMBER OF SHARES(2)   PERCENT OF TOTAL
---------------------------                                   -------------------   ----------------
                                                                              
Voting Trust(3).............................................       11,279,077             14.4%

Stephens Group, Inc.(3)(4)..................................        6,293,526              8.0

Steven J. Goldman...........................................        2,931,356              3.7

William T. Yeates...........................................          202,500                *

Eddie K. Schnopp(5).........................................        1,063,928              1.3

Dennis R. Roark.............................................        1,024,174              1.3

David J. Hage...............................................        1,147,782              1.5

Jon E.M. Jacoby(4)(6).......................................        2,377,849              3.0

Hanspeter Brandli...........................................               --               --

Jay Walters.................................................           31,000                *

Kendall R. Bishop...........................................           49,650                *

All executive officers and directors as a group (11
  persons)..................................................        8,878,066             11.1


------------------------

*   Less than 1%

 (1) The addresses for the listed beneficial owners are as follows: for the
     voting trust, c/o James Sommers, Trustee, 2148 Rolston Road, Charlotte,
     North Carolina, 28207; for Stephens Group, Inc. and Jon E.M. Jacoby, 111
     Center Street, Little Rock, Arkansas 72201; for each other listed
     stockholder, c/o the Company, 740 Calle Plano, Camarillo, California 93012.

 (2) Gives effect to options exercisable within 60 days of March 15, 2001 and to
     the three-for-two and two-for-one splits of our common stock effected
     during 2000.

 (3) The voting trust is administered by Mr. James Sommers, Trustee. The trustee
     exercises sole voting power over the trust's shares, and is required to
     vote such shares "for" or "against" proposals submitted to our stockholders
     in the same proportion as the votes cast "for" and "against" such proposals
     by all other stockholders, excluding abstentions. The voting trust will
     expire on the earlier of June 7, 2008, or the occurrence of certain events
     related to Stephens Inc.'s status as an affiliate of us.

 (4) Stephens Group, Inc. has contributed its shares to a voting trust described
     in Note 3. Certain shareholders, directors, officers and related entities
     of Stephens Group, Inc. own an additional 5,719,119 shares, of which
     4,985,551 have been contributed to the voting trust. Mr. Jacoby is a
     director and an officer of Stephens Group, Inc. and its affiliate,
     Stephens Inc.

                                       15

         SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

 (5) Includes 434,591 shares owned by Ms. Koep and 12,148 shares owned by a
     trust for the benefit of Mr. Schnopp's children. Mr. Schnopp disclaims
     beneficial ownership of such shares.

 (6) Includes 321,451 shares owned by Jacoby Enterprises, Inc., 283,544 shares
     owned by Coral Two Corporation and 74,304 shares owned by Stephens Inc.
     Custodian for Jon E.M. Jacoby IRA, which have all been contributed to the
     voting trust and as to which Mr. Jacoby has sole power of disposition,
     subject to certain transfer restrictions in the voting trust agreement, and
     the voting trust has sole power to vote; also includes 30,566 shares owned
     by Delaware Charter Guarantee & Trust F/B/O Jon E.M. Jacoby Keogh as to
     which Mr. Jacoby has sole power of disposition and sole power to vote; also
     includes the following shares as to which Mr. Jacoby disclaims beneficial
     ownership: 239,937 shares owned by Warren and Harriet Stephens Children's
     Trust UID 9/30/87, 245,322 shares owned by Nicholas M. Stephens Trust AAAA,
     245,322 shares owned by Caroline A. Stephens Trust AAAA and 245,323 shares
     owned by JT Stephens III Trust AAAA, which have been contributed to the
     voting trust and as to which Mr. Jacoby, as sole trustee, has sole power of
     disposition, subject to certain transfer restrictions in the voting trust
     agreement, and the voting trust has sole power to vote; and includes 88,208
     shares owned by Grandchild's Trust One UID 12/16/85, 88,208 shares owned by
     Grandchild's Trust Two UID 12/16/85, 88,208 shares owned by Grandchild's
     Trust Three UID 12/89, 45,000 shares owned by Susan Stephens Campbell 1995
     Trust UID 12/4/95, 45,000 shares owned by Craig D. Campbell, Jr. 1995 Trust
     UID 12/4/95 and 45,000 shares owned by Elizabeth Chisum Campbell 1995 Trust
     UID 12/4/95, as to which Mr. Jacoby, as a co-trustee, has shared power to
     vote and shared power of disposition; and includes 48,408 shares owned by
     Etablissement Landeco Vaduz, as to which Mr. Jacoby has shared power of
     disposition and no power to vote pursuant to a power of attorney granted to
     Mr. Jacoby. Does not include shares owned by Stephens Group, Inc. or other
     of its related persons or entities, except as mentioned in this footnote.

                                       16

                            STOCK PERFORMANCE GRAPH

    The following compares the cumulative total stockholder return on a $100
investment in our common stock with the cumulative total return of a $100
investment in the Standard & Poors 500 Index, the Russell 2000 Index and the
Nasdaq Stock Market, each for the period from September 30, 1997 (the day our
common stock commenced trading) through December 29, 2000. The total return on
the common stock is measured by dividing the difference between the common stock
price at the end and the beginning of the measurement period by the common stock
price at the beginning of the measurement period.

    The Standard & Poors 500 Index, Russell 2000 Index and Nasdaq Stock Market
are intended to provide a relevant comparison of total annual return in the time
period (through December 29, 2000) in which our common stock has been publicly
traded.

          BASED ON INVESTMENT OF $100 BEGINNING SEPTEMBER 30, 1997(*)

EDGAR REPRESENTATION OF DATA POINTS USED IN PRINTED GRAPHIC



          POWER-ONE  RUSSELL 2000  NASDAQ  S&P 500
                               
09/30/97     100.00        100.00  100.00   100.00
10/01/97     129.91        100.00  100.00   101.00
10/02/97     128.57        101.00  101.00   101.00
10/03/97     129.46        101.00  102.00   102.00
10/06/97     140.18        102.00  102.00   103.00
10/07/97     135.71        102.00  103.00   104.00
10/08/97     136.61        102.00  103.00   103.00
10/09/97     132.14        102.00  104.00   102.00
10/10/97     133.93        102.00  103.00   102.00
10/13/97     135.71        103.00  103.00   102.00
10/14/97     133.04        102.00  103.00   102.00
10/15/97     133.93        102.00  102.00   102.00
10/16/97     132.59        101.00  101.00   101.00
10/17/97     133.48         99.00   99.00   100.00
10/20/97     132.59        100.00  100.00   101.00
10/21/97     134.82        101.00  102.00   103.00
10/22/97     137.50        101.00  101.00   102.00
10/23/97     135.71         99.00   99.00   100.00
10/24/97     135.71         99.00   98.00    99.00
10/27/97     125.00         93.00   91.00    93.00
10/28/97     137.50         95.00   95.00    97.00
10/29/97     133.04         96.00   95.00    97.00
10/30/97     130.36         94.00   93.00    95.00
10/31/97     133.04         95.00   95.00    97.00
11/03/97     130.36         97.00   97.00    99.00
11/04/97     130.80         97.00   97.00    99.00
11/05/97     135.71         98.00   97.00   100.00
11/06/97     131.25         98.00   96.00    99.00
11/07/97     132.14         96.00   95.00    98.00
11/10/97     133.04         96.00   94.00    97.00
11/11/97     133.93         96.00   94.00    98.00
11/12/97     131.25         93.00   91.00    96.00
11/13/97     124.11         93.00   92.00    97.00
11/14/97     120.54         94.00   94.00    98.00
11/17/97     123.21         96.00   96.00   100.00
11/18/97     124.11         95.00   95.00    99.00
11/19/97     125.00         95.00   95.00   100.00
11/20/97     125.45         96.00   96.00   101.00
11/21/97     123.21         96.00   96.00   102.00
11/24/97     125.00         94.00   94.00   100.00
11/25/97     125.00         94.00   94.00   100.00
11/26/97     117.86         94.00   95.00   100.00
11/28/97     116.96         95.00   95.00   101.00
12/01/97     116.96         96.00   97.00   103.00
12/02/97     112.50         95.00   95.00   103.00
12/03/97     108.04         96.00   96.00   103.00
12/04/97     109.82         96.00   96.00   103.00
12/05/97     104.91         97.00   97.00   104.00
12/08/97     103.57         97.00   98.00   104.00
12/09/97     107.14         97.00   96.00   103.00
12/10/97     109.82         95.00   95.00   102.00
12/11/97     108.04         94.00   92.00   101.00
12/12/97     107.59         93.00   91.00   101.00
12/15/97     108.04         93.00   91.00   102.00
12/16/97     105.36         94.00   92.00   102.00
12/17/97     102.23         94.00   92.00   102.00
12/18/97     100.89         93.00   90.00   101.00
12/19/97     100.89         93.00   90.00   100.00
12/22/97     100.89         93.00   91.00   101.00
12/23/97      99.11         93.00   90.00    99.00
12/24/97     100.00         93.00   89.00    98.00
12/26/97     100.00         93.00   90.00    99.00
12/29/97     100.00         94.00   91.00   101.00
12/30/97     100.00         96.00   93.00   102.00
12/31/97      98.21         96.00   93.00   102.00
01/02/98      98.21         96.00   94.00   103.00
01/05/98     101.79         96.00   95.00   103.00
01/06/98     101.79         95.00   94.00   102.00
01/07/98     101.79         95.00   93.00   102.00
01/08/98     101.79         94.00   92.00   101.00
01/09/98      92.86         91.00   89.00    98.00
01/12/98      92.86         91.00   89.00    99.00
01/13/98     100.89         92.00   91.00   101.00
01/14/98     109.82         93.00   92.00   101.00
01/15/98     108.93         93.00   92.00   100.00
01/16/98     109.82         94.00   93.00   102.00
01/20/98     116.07         95.00   94.00   103.00
01/21/98     113.39         95.00   94.00   102.00
01/22/98     113.39         94.00   94.00   102.00
01/23/98     110.71         94.00   93.00   101.00
01/26/98     101.79         93.00   93.00   101.00
01/27/98     107.14         93.00   94.00   102.00
01/28/98     107.14         94.00   96.00   103.00
01/29/98     112.50         95.00   96.00   104.00
01/30/98     110.71         95.00   96.00   103.00
02/02/98     110.71         96.00   98.00   106.00
02/03/98     109.82         96.00   99.00   106.00
02/04/98     114.29         97.00  100.00   106.00
02/05/98     112.95         98.00   99.00   106.00
02/06/98     109.82         98.00  101.00   107.00
02/09/98     114.29         99.00  100.00   107.00
02/10/98     114.29         99.00  101.00   108.00
02/11/98     110.71        100.00  101.00   108.00
02/12/98     112.95        100.00  102.00   108.00
02/13/98     112.95        100.00  101.00   108.00
02/17/98     112.95        100.00  101.00   108.00
02/18/98     112.50        100.00  102.00   109.00
02/19/98     112.50        100.00  102.00   109.00
02/20/98     113.39        100.00  103.00   109.00
02/23/98     113.84        101.00  104.00   110.00
02/24/98     117.86        100.00  103.00   109.00
02/25/98     116.96        101.00  105.00   110.00
02/26/98     120.54        102.00  105.00   111.00
02/27/98     123.21        102.00  105.00   111.00
03/02/98     117.86        102.00  104.00   111.00
03/03/98     114.29        102.00  104.00   111.00
03/04/98     110.71        102.00  104.00   111.00
03/05/98     108.04        101.00  102.00   109.00
03/06/98     111.61        102.00  104.00   111.00
03/09/98     109.82        102.00  102.00   111.00
03/10/98     110.71        102.00  104.00   112.00
03/11/98     109.82        103.00  104.00   113.00
03/12/98     109.82        103.00  105.00   113.00
03/13/98     109.82        103.00  105.00   113.00
03/16/98     108.93        104.00  106.00   114.00
03/17/98     107.14        104.00  106.00   114.00
03/18/98     106.70        104.00  106.00   115.00
03/19/98     112.50        105.00  107.00   115.00
03/20/98     110.71        105.00  106.00   116.00
03/23/98     114.73        104.00  106.00   116.00
03/24/98     121.43        105.00  108.00   117.00
03/25/98     116.96        105.00  108.00   116.00
03/26/98     119.64        105.00  108.00   116.00
03/27/98     116.96        105.00  108.00   116.00
03/30/98     119.64        105.00  108.00   115.00
03/31/98     121.43        106.00  109.00   116.00
04/01/98     118.75        107.00  110.00   117.00
04/02/98     120.09        107.00  110.00   118.00
04/03/98     121.43        107.00  110.00   119.00
04/06/98     121.43        106.00  109.00   118.00
04/07/98     120.54        105.00  107.00   117.00
04/08/98     120.54        105.00  107.00   116.00
04/09/98     118.75        106.00  108.00   117.00
04/13/98     121.43        106.00  108.00   117.00
04/14/98     117.86        107.00  109.00   118.00
04/15/98     120.54        107.00  111.00   118.00
04/16/98     117.86        107.00  110.00   117.00
04/17/98     113.39        107.00  111.00   119.00
04/20/98     100.00        108.00  112.00   119.00
04/21/98     100.00        108.00  113.00   119.00
04/22/98      97.32        108.00  114.00   119.00
04/23/98      92.86        107.00  112.00   118.00
04/24/98      94.64        106.00  111.00   117.00
04/27/98      95.54        103.00  108.00   115.00
04/28/98      90.18        104.00  109.00   115.00
04/29/98      89.73        105.00  110.00   116.00
04/30/98      89.73        106.00  111.00   117.00
05/01/98      89.29        107.00  111.00   118.00
05/04/98      89.29        107.00  111.00   118.00
05/05/98      86.61        106.00  111.00   118.00
05/06/98      83.93        106.00  110.00   117.00
05/07/98      86.61        105.00  109.00   116.00
05/08/98      86.61        106.00  111.00   117.00
05/11/98      86.16        105.00  110.00   117.00
05/12/98      84.82        105.00  110.00   118.00
05/13/98      83.48        105.00  111.00   118.00
05/14/98      84.82        105.00  111.00   118.00
05/15/98      84.82        104.00  110.00   117.00
05/18/98      82.14        103.00  109.00   117.00
05/19/98      82.14        104.00  110.00   117.00
05/20/98      79.46        103.00  109.00   118.00
05/21/98      71.43        103.00  108.00   118.00
05/22/98      71.43        102.00  107.00   117.00
05/26/98      70.54        100.00  105.00   115.00
05/27/98      69.64         99.00  106.00   115.00
05/28/98      70.09        100.00  106.00   116.00
05/29/98      70.54        101.00  106.00   115.00
06/01/98      68.75         99.00  104.00   115.00
06/02/98      69.64         99.00  105.00   115.00
06/03/98      58.48         99.00  103.00   114.00
06/04/98      55.36        100.00  105.00   116.00
06/05/98      55.36        100.00  106.00   118.00
06/08/98      55.80        101.00  106.00   118.00
06/09/98      58.93        101.00  107.00   118.00
06/10/98      63.39         99.00  105.00   117.00
06/11/98      59.82         98.00  104.00   116.00
06/12/98      57.59         97.00  104.00   116.00
06/15/98      56.25         96.00  102.00   114.00
06/16/98      56.25         97.00  104.00   115.00
06/17/98      58.93         98.00  105.00   117.00
06/18/98      57.14         97.00  105.00   117.00
06/19/98      58.93         97.00  106.00   116.00
06/22/98      58.93         97.00  107.00   116.00
06/23/98      57.59         99.00  109.00   118.00
06/24/98      57.59         99.00  111.00   120.00
06/25/98      63.39         99.00  111.00   119.00
06/26/98      64.29         99.00  111.00   120.00
06/29/98      64.29        100.00  112.00   120.00
06/30/98      67.41        101.00  112.00   120.00
07/01/98      71.43        101.00  114.00   121.00
07/02/98      67.86        101.00  112.00   121.00
07/06/98      68.75        101.00  113.00   122.00
07/07/98      69.20        101.00  113.00   122.00
07/08/98      67.86        101.00  115.00   123.00
07/09/98      64.29        101.00  115.00   122.00
07/10/98      64.29        101.00  115.00   123.00
07/13/98      62.05        101.00  117.00   123.00
07/14/98      66.07        101.00  117.00   124.00
07/15/98      68.30        102.00  118.00   124.00
07/16/98      67.41        102.00  119.00   125.00
07/17/98      62.95        102.00  119.00   125.00
07/20/98      64.29        102.00  119.00   125.00
07/21/98      67.41        101.00  117.00   123.00
07/22/98      66.07         99.00  117.00   123.00
07/23/98      64.29         97.00  115.00   120.00
07/24/98      62.50         97.00  115.00   120.00
07/27/98      59.82         95.00  115.00   121.00
07/28/98      57.14         94.00  113.00   119.00
07/29/98      52.68         94.00  112.00   119.00
07/30/98      55.36         95.00  114.00   121.00
07/31/98      51.79         92.00  111.00   118.00
08/03/98      50.89         91.00  110.00   117.00
08/04/98      53.57         89.00  106.00   113.00
08/05/98      54.46         88.00  106.00   114.00
08/06/98      53.57         90.00  109.00   115.00
08/07/98      54.02         92.00  110.00   115.00
08/10/98      54.02         91.00  109.00   114.00
08/11/98      50.89         88.00  106.00   113.00
08/12/98      56.25         90.00  108.00   114.00
08/13/98      54.46         89.00  107.00   113.00
08/14/98      55.36         89.00  106.00   112.00
08/17/98      54.46         89.00  108.00   114.00
08/18/98      54.46         91.00  110.00   116.00
08/19/98      53.57         89.00  109.00   116.00
08/20/98      50.89         89.00  109.00   115.00
08/21/98      50.89         87.00  107.00   114.00
08/24/98      55.36         87.00  106.00   115.00
08/25/98      54.46         86.00  107.00   115.00
08/26/98      53.57         84.00  105.00   114.00
08/27/98      50.89         81.00  100.00   110.00
08/28/98      50.89         79.00   97.00   108.00
08/31/98      49.55         74.00   89.00   101.00
09/01/98      50.89         77.00   93.00   105.00
09/02/98      53.35         78.00   94.00   105.00
09/03/98      50.89         76.00   93.00   104.00
09/04/98      52.68         76.00   93.00   103.00
09/08/98      52.68         80.00   99.00   108.00
09/09/98      51.79         78.00   96.00   106.00
09/10/98      50.00         76.00   94.00   103.00
09/11/98      50.00         78.00   97.00   107.00
09/14/98      50.00         79.00   99.00   109.00
09/15/98      51.34         79.00  100.00   110.00
09/16/98      50.00         79.00  100.00   110.00
09/17/98      50.00         78.00   98.00   108.00
09/18/98      48.21         80.00   99.00   108.00
09/21/98      48.21         80.00  100.00   108.00
09/22/98      48.21         81.00  101.00   109.00
09/23/98      47.77         83.00  104.00   113.00
09/24/98      47.32         82.00  102.00   110.00
09/25/98      45.98         81.00  103.00   110.00
09/28/98      46.88         81.00  103.00   111.00
09/29/98      50.00         81.00  103.00   111.00
09/30/98      52.68         80.00  100.00   107.00
10/01/98      46.43         77.00   96.00   104.00
10/02/98      51.79         77.00   96.00   106.00
10/05/98      50.00         74.00   91.00   104.00
10/06/98      47.32         73.00   90.00   104.00
10/07/98      42.86         71.00   87.00   102.00
10/08/98      42.86         68.00   84.00   101.00
10/09/98      41.07         70.00   89.00   104.00
10/12/98      42.86         72.00   92.00   105.00
10/13/98      42.86         71.00   90.00   105.00
10/14/98      44.64         72.00   91.00   106.00
10/15/98      50.00         74.00   96.00   111.00
10/16/98      50.89         76.00   96.00   112.00
10/19/98      46.43         78.00   98.00   112.00
10/20/98      48.21         79.00   97.00   112.00
10/21/98      50.89         79.00   99.00   113.00
10/22/98      53.57         81.00  101.00   114.00
10/23/98      43.75         81.00  100.00   113.00
10/26/98      39.29         82.00  102.00   113.00
10/27/98      43.75         82.00  102.00   112.00
10/28/98      41.07         82.00  103.00   113.00
10/29/98      41.07         83.00  104.00   115.00
10/30/98      40.18         83.00  105.00   116.00
11/02/98      41.96         85.00  107.00   117.00
11/03/98      41.96         85.00  106.00   117.00
11/04/98      44.64         87.00  108.00   118.00
11/05/98      44.20         87.00  109.00   120.00
11/06/98      45.54         88.00  110.00   120.00
11/09/98      46.43         88.00  110.00   119.00
11/10/98      46.43         87.00  111.00   119.00
11/11/98      46.43         87.00  110.00   118.00
11/12/98      44.64         86.00  110.00   118.00
11/13/98      46.43         86.00  110.00   119.00
11/16/98      46.43         86.00  110.00   120.00
11/17/98      45.54         86.00  111.00   120.00
11/18/98      44.64         86.00  113.00   121.00
11/19/98      44.64         87.00  114.00   122.00
11/20/98      44.64         87.00  114.00   123.00
11/23/98      43.30         88.00  117.00   125.00
11/24/98      42.86         87.00  117.00   125.00
11/25/98      42.86         88.00  118.00   125.00
11/27/98      42.86         89.00  120.00   126.00
11/30/98      41.52         88.00  116.00   123.00
12/01/98      42.86         88.00  119.00   124.00
12/02/98      42.86         88.00  118.00   124.00
12/03/98      44.64         87.00  116.00   121.00
12/04/98      46.43         88.00  119.00   124.00
12/07/98      44.64         88.00  121.00   125.00
12/08/98      43.75         88.00  121.00   125.00
12/09/98      44.64         89.00  122.00   125.00
12/10/98      43.75         87.00  120.00   123.00
12/11/98      45.54         87.00  120.00   123.00
12/14/98      44.64         85.00  117.00   120.00
12/15/98      44.64         86.00  119.00   123.00
12/16/98      44.64         86.00  119.00   123.00
12/17/98      44.64         87.00  121.00   125.00
12/18/98      45.54         88.00  124.00   125.00
12/21/98      44.64         89.00  127.00   127.00
12/22/98      46.43         88.00  126.00   127.00
12/23/98      45.54         89.00  129.00   130.00
12/24/98      45.54         89.00  128.00   129.00
12/28/98      44.64         90.00  129.00   129.00
12/29/98      45.09         90.00  129.00   131.00
12/30/98      44.64         91.00  129.00   130.00
12/31/98      50.00         93.00  130.00   130.00
01/04/99      50.00         93.00  131.00   130.00
01/05/99      57.14         93.00  134.00   131.00
01/06/99      64.29         94.00  138.00   134.00
01/07/99      73.21         94.00  138.00   134.00
01/08/99      70.54         95.00  139.00   135.00
01/11/99      71.43         95.00  141.00   133.00
01/12/99      71.43         94.00  138.00   131.00
01/13/99      81.25         94.00  137.00   130.00
01/14/99      83.04         93.00  135.00   128.00
01/15/99      80.36         94.00  139.00   131.00
01/19/99      79.91         95.00  143.00   132.00
01/20/99      82.59         95.00  143.00   133.00
01/21/99      87.50         93.00  139.00   130.00
01/22/99      84.82         93.00  139.00   129.00
01/25/99      83.93         93.00  141.00   130.00
01/26/99      81.70         94.00  144.00   132.00
01/27/99      81.25         93.00  143.00   131.00
01/28/99      75.00         93.00  147.00   134.00
01/29/99      74.11         94.00  149.00   135.00
02/01/99      74.55         94.00  149.00   134.00
02/02/99      74.55         93.00  146.00   133.00
02/03/99      77.68         93.00  148.00   134.00
02/04/99      78.57         92.00  143.00   132.00
02/05/99      75.89         91.00  141.00   131.00
02/08/99      74.11         91.00  143.00   131.00
02/09/99      72.32         89.00  137.00   128.00
02/10/99      71.43         88.00  137.00   129.00
02/11/99      72.32         90.00  143.00   132.00
02/12/99      69.64         88.00  138.00   130.00
02/16/99      70.98         87.00  137.00   131.00
02/17/99      70.98         86.00  133.00   129.00
02/18/99      70.09         86.00  134.00   131.00
02/19/99      69.64         86.00  135.00   131.00
02/22/99      70.09         88.00  139.00   134.00
02/23/99      69.64         88.00  141.00   134.00
02/24/99      66.96         87.00  139.00   132.00
02/25/99      69.64         87.00  138.00   131.00
02/26/99      69.64         86.00  136.00   131.00
03/01/99      67.86         87.00  136.00   131.00
03/02/99      66.96         87.00  134.00   129.00
03/03/99      66.07         86.00  134.00   130.00
03/04/99      65.18         87.00  136.00   132.00
03/05/99      63.84         88.00  139.00   135.00
03/08/99      63.84         88.00  142.00   135.00
03/09/99      62.50         88.00  142.00   135.00
03/10/99      59.37         88.00  143.00   136.00
03/11/99      59.82         88.00  143.00   137.00
03/12/99      57.14         88.00  141.00   137.00
03/15/99      57.14         88.00  144.00   138.00
03/16/99      57.14         88.00  145.00   138.00
03/17/99      56.25         88.00  144.00   137.00
03/18/99      58.04         88.00  146.00   139.00
03/19/99      56.70         87.00  144.00   137.00
03/22/99      55.36         87.00  142.00   137.00
03/23/99      51.79         84.00  138.00   133.00
03/24/99      44.64         85.00  140.00   134.00
03/25/99      46.43         87.00  144.00   136.00
03/26/99      50.00         87.00  144.00   135.00
03/29/99      53.57         88.00  148.00   138.00
03/30/99      52.68         88.00  147.00   137.00
03/31/99      48.21         88.00  146.00   136.00
04/01/99      48.21         88.00  148.00   137.00
04/05/99      47.32         89.00  152.00   139.00
04/06/99      46.43         88.00  152.00   139.00
04/07/99      48.21         88.00  151.00   140.00
04/08/99      49.11         88.00  153.00   142.00
04/09/99      50.89         89.00  154.00   142.00
04/12/99      56.25         91.00  154.00   143.00
04/13/99      65.18         92.00  153.00   142.00
04/14/99      62.05         92.00  149.00   140.00
04/15/99      63.39         92.00  150.00   140.00
04/16/99      68.30         93.00  147.00   139.00
04/19/99      64.29         91.00  139.00   136.00
04/20/99      64.29         92.00  143.00   138.00
04/21/99      75.89         94.00  148.00   141.00
04/22/99      72.77         95.00  152.00   143.00
04/23/99      71.88         95.00  154.00   143.00
04/26/99      73.21         96.00  157.00   144.00
04/27/99      75.89         96.00  154.00   144.00
04/28/99      73.21         96.00  151.00   143.00
04/29/99      71.88         95.00  150.00   142.00
04/30/99      75.00         95.00  151.00   141.00
05/03/99      74.11         95.00  150.00   143.00
05/04/99      73.21         95.00  147.00   141.00
05/05/99      77.68         96.00  150.00   142.00
05/06/99      73.21         96.00  147.00   141.00
05/07/99      74.11         96.00  149.00   142.00
05/10/99      75.00         97.00  150.00   141.00
05/11/99      77.68         98.00  152.00   143.00
05/12/99      76.79         99.00  155.00   144.00
05/13/99      84.82         99.00  153.00   144.00
05/14/99      86.61         98.00  150.00   141.00
05/17/99      89.29         97.00  152.00   141.00
05/18/99      91.07         97.00  152.00   141.00
05/19/99      95.54         98.00  153.00   142.00
05/20/99      94.64         99.00  151.00   141.00
05/21/99     100.89         99.00  150.00   140.00
05/24/99     100.89         97.00  146.00   138.00
05/25/99     106.25         96.00  141.00   136.00
05/26/99     101.79         96.00  144.00   138.00
05/27/99     101.79         95.00  144.00   135.00
05/28/99     116.52         97.00  147.00   137.00
06/01/99     112.95         96.00  143.00   137.00
06/02/99     108.93         96.00  144.00   137.00
06/03/99     114.73         96.00  143.00   137.00
06/04/99     115.18         97.00  147.00   140.00
06/07/99     113.39         98.00  150.00   141.00
06/08/99     110.71         98.00  147.00   139.00
06/09/99     114.73         98.00  149.00   139.00
06/10/99     112.50         97.00  147.00   138.00
06/11/99     109.82         97.00  145.00   137.00
06/14/99     109.82         95.00  142.00   137.00
06/15/99     114.29         96.00  143.00   137.00
06/16/99     116.96         97.00  149.00   140.00
06/17/99     119.64         98.00  151.00   141.00
06/18/99     129.46         98.00  152.00   142.00
06/21/99     132.14         99.00  156.00   142.00
06/22/99     133.48         99.00  153.00   141.00
06/23/99     139.29         99.00  154.00   141.00
06/24/99     135.71         98.00  152.00   139.00
06/25/99     133.93         98.00  151.00   139.00
06/28/99     137.50         99.00  154.00   141.00
06/29/99     149.11        100.00  157.00   143.00
06/30/99     175.89        101.00  159.00   145.00
07/01/99     171.43        100.00  161.00   146.00
07/02/99     178.57        101.00  163.00   147.00
07/06/99     168.75        101.00  162.00   147.00
07/07/99     175.89        100.00  163.00   147.00
07/08/99     178.57        100.00  164.00   147.00
07/09/99     189.73        101.00  166.00   148.00
07/12/99     204.46        101.00  166.00   148.00
07/13/99     207.14        101.00  165.00   147.00
07/14/99     205.36        102.00  167.00   148.00
07/15/99     203.57        103.00  168.00   149.00
07/16/99     204.46        103.00  170.00   150.00
07/19/99     205.36        102.00  168.00   149.00
07/20/99     195.98        100.00  162.00   145.00
07/21/99     199.11        100.00  164.00   146.00
07/22/99     203.57         99.00  159.00   144.00
07/23/99     204.02         99.00  160.00   143.00
07/26/99     192.86         98.00  155.00   142.00
07/27/99     183.04         98.00  159.00   144.00
07/28/99     190.18         98.00  161.00   144.00
07/29/99     178.57         97.00  157.00   142.00
07/30/99     183.04         98.00  157.00   140.00
08/02/99     181.70         98.00  156.00   140.00
08/03/99     185.71         96.00  154.00   140.00
08/04/99     185.71         95.00  151.00   138.00
08/05/99     195.54         95.00  152.00   139.00
08/06/99     195.09         94.00  151.00   137.00
08/09/99     192.86         94.00  149.00   137.00
08/10/99     191.96         93.00  148.00   135.00
08/11/99     201.79         94.00  152.00   137.00
08/12/99     199.55         94.00  151.00   137.00
08/13/99     201.34         96.00  156.00   140.00
08/16/99     212.95         96.00  157.00   140.00
08/17/99     226.12         96.00  158.00   142.00
08/18/99     220.54         95.00  158.00   141.00
08/19/99     204.02         95.00  156.00   140.00
08/20/99     202.68         96.00  157.00   141.00
08/23/99     208.04         96.00  161.00   144.00
08/24/99     205.36         96.00  163.00   144.00
08/25/99     202.68         96.00  166.00   146.00
08/26/99     198.21         96.00  165.00   144.00
08/27/99     195.54         95.00  164.00   142.00
08/30/99     196.43         94.00  161.00   140.00
08/31/99     188.84         94.00  163.00   139.00
09/01/99     192.86         95.00  163.00   141.00
09/02/99     191.07         94.00  162.00   139.00
09/03/99     196.43         96.00  169.00   143.00
09/07/99     197.32         97.00  168.00   143.00
09/08/99     192.86         96.00  167.00   142.00
09/09/99     195.54         96.00  169.00   142.00
09/10/99     196.88         97.00  171.00   143.00
09/13/99     188.39         97.00  169.00   142.00
09/14/99     182.14         97.00  170.00   141.00
09/15/99     179.91         96.00  167.00   139.00
09/16/99     184.82         95.00  167.00   139.00
09/17/99     192.86         96.00  170.00   141.00
09/20/99     188.39         95.00  171.00   141.00
09/21/99     182.59         94.00  167.00   138.00
09/22/99     183.04         94.00  170.00   138.00
09/23/99     183.04         93.00  163.00   135.00
09/24/99     178.57         92.00  163.00   135.00
09/27/99     179.91         93.00  164.00   135.00
09/28/99     179.46         92.00  164.00   135.00
09/29/99     179.46         93.00  162.00   134.00
09/30/99     182.14         94.00  163.00   135.00
10/01/99     187.50         93.00  162.00   135.00
10/04/99     186.61         94.00  166.00   138.00
10/05/99     183.04         94.00  166.00   137.00
10/06/99     185.27         95.00  170.00   140.00
10/07/99     200.89         94.00  170.00   139.00
10/08/99     200.89         94.00  171.00   141.00
10/11/99     215.63         95.00  173.00   141.00
10/12/99     220.54         94.00  170.00   139.00
10/13/99     212.05         92.00  166.00   136.00
10/14/99     200.89         92.00  167.00   135.00
10/15/99     196.43         91.00  162.00   132.00
10/18/99     179.46         90.00  160.00   132.00
10/19/99     183.93         91.00  159.00   133.00
10/20/99     192.86         91.00  165.00   136.00
10/21/99     191.52         91.00  166.00   136.00
10/22/99     195.09         92.00  167.00   137.00
10/25/99     209.37         92.00  167.00   137.00
10/26/99     207.14         92.00  167.00   135.00
10/27/99     131.25         92.00  166.00   137.00
10/28/99     134.37         93.00  171.00   142.00
10/29/99     142.86         94.00  176.00   144.00
11/01/99     147.32         95.00  176.00   143.00
11/02/99     149.11         95.00  177.00   142.00
11/03/99     151.79         97.00  180.00   143.00
11/04/99     152.68         97.00  181.00   144.00
11/05/99     140.18         97.00  184.00   145.00
11/08/99     138.84         98.00  187.00   145.00
11/09/99     138.84         98.00  185.00   144.00
11/10/99     139.29         99.00  187.00   145.00
11/11/99     141.07         99.00  190.00   146.00
11/12/99     140.18         99.00  191.00   147.00
11/15/99     130.36        100.00  191.00   147.00
11/16/99     133.48        101.00  195.00   150.00
11/17/99     176.79        101.00  194.00   149.00
11/18/99     183.04        102.00  199.00   150.00
11/19/99     171.43        102.00  200.00   150.00
11/22/99     174.11        102.00  201.00   150.00
11/23/99     170.98        100.00  198.00   148.00
11/24/99     170.98        100.00  203.00   150.00
11/26/99     171.87        101.00  205.00   150.00
11/29/99     171.43        101.00  203.00   149.00
11/30/99     169.64        100.00  198.00   147.00
12/01/99     168.30        100.00  199.00   148.00
12/02/99     164.29        101.00  205.00   149.00
12/03/99     163.39        102.00  209.00   151.00
12/06/99     160.71        103.00  210.00   150.00
12/07/99     158.04        103.00  213.00   149.00
12/08/99     186.61        103.00  213.00   148.00
12/09/99     199.11        102.00  213.00   149.00
12/10/99     203.57        103.00  215.00   150.00
12/13/99     208.93        104.00  217.00   149.00
12/14/99     216.07        102.00  212.00   148.00
12/15/99     209.82        102.00  215.00   149.00
12/16/99     216.07        103.00  220.00   150.00
12/17/99     220.98        103.00  223.00   150.00
12/20/99     233.04        103.00  224.00   150.00
12/21/99     239.29        105.00  232.00   151.00
12/22/99     241.96        105.00  234.00   152.00
12/23/99     254.46        106.00  235.00   154.00
12/27/99     250.89        107.00  236.00   154.00
12/28/99     279.02        108.00  236.00   154.00
12/29/99     295.09        110.00  240.00   154.00
12/30/99     323.21        109.00  239.00   155.00
12/31/99     327.23        111.00  241.00   155.00
01/03/00     301.79        109.00  245.00   154.00
01/04/00     269.64        105.00  231.00   148.00
01/05/00     268.75        106.00  230.00   148.00
01/06/00     250.00        105.00  221.00   148.00
01/07/00     256.25        108.00  230.00   152.00
01/10/00     260.27        111.00  240.00   154.00
01/11/00     247.32        109.00  233.00   152.00
01/12/00     243.75        108.00  228.00   151.00
01/13/00     239.29        110.00  235.00   153.00
01/14/00     266.07        112.00  241.00   155.00
01/18/00     269.64        113.00  245.00   154.00
01/19/00     266.96        115.00  246.00   154.00
01/20/00     270.98        116.00  249.00   153.00
01/21/00     266.07        118.00  251.00   152.00
01/24/00     271.43        115.00  243.00   148.00
01/25/00     279.02        115.00  247.00   149.00
01/26/00     271.43        115.00  241.00   148.00
01/27/00     268.75        114.00  240.00   148.00
01/28/00     258.04        111.00  231.00   144.00
01/31/00     244.64        109.00  234.00   147.00
02/01/00     252.68        111.00  240.00   149.00
02/02/00     264.29        112.00  242.00   149.00
02/03/00     266.96        115.00  250.00   150.00
02/04/00     271.43        116.00  252.00   150.00
02/07/00     275.00        117.00  256.00   150.00
02/08/00     273.21        118.00  263.00   152.00
02/09/00     287.50        118.00  259.00   149.00
02/10/00     296.43        119.00  266.00   150.00
02/11/00     300.00        118.00  261.00   146.00
02/14/00     323.21        119.00  262.00   147.00
02/15/00     325.89        119.00  262.00   148.00
02/16/00     339.29        121.00  263.00   146.00
02/17/00     329.91        123.00  270.00   147.00
02/18/00     325.89        120.00  262.00   142.00
02/22/00     334.38        119.00  260.00   143.00
02/23/00     314.29        121.00  270.00   144.00
02/24/00     312.50        122.00  274.00   143.00
02/25/00     300.00        123.00  272.00   141.00
02/28/00     325.89        123.00  272.00   142.00
02/29/00     350.89        127.00  279.00   144.00
03/01/00     344.20        130.00  284.00   146.00
03/02/00     333.93        129.00  282.00   146.00
03/03/00     328.57        132.00  292.00   149.00
03/06/00     345.98        133.00  291.00   147.00
03/07/00     399.11        131.00  288.00   143.00
03/08/00     396.43        131.00  291.00   144.00
03/09/00     416.07        134.00  299.00   148.00
03/10/00     437.50        133.00  300.00   147.00
03/13/00     449.11        130.00  291.00   146.00
03/14/00     450.00        126.00  279.00   143.00
03/15/00     435.71        123.00  272.00   147.00
03/16/00     405.36        127.00  280.00   154.00
03/17/00     423.21        127.00  285.00   155.00
03/20/00     407.14        121.00  273.00   154.00
03/21/00     424.55        122.00  280.00   158.00
03/22/00     468.75        126.00  289.00   158.00
03/23/00     491.07        126.00  293.00   161.00
03/24/00     480.36        126.00  294.00   161.00
03/27/00     437.50        126.00  294.00   161.00
03/28/00     421.43        123.00  287.00   159.00
03/29/00     405.80        120.00  276.00   159.00
03/30/00     375.89        117.00  264.00   157.00
03/31/00     431.25        119.00  271.00   158.00
04/03/00     457.81        114.00  251.00   159.00
04/04/00     423.21        112.00  246.00   158.00
04/05/00     465.18        114.00  247.00   157.00
04/06/00     521.43        117.00  253.00   158.00
04/07/00     532.14        120.00  264.00   160.00
04/10/00     486.16        114.00  248.00   159.00
04/11/00     469.20        112.00  241.00   158.00
04/12/00     439.29        109.00  224.00   155.00
04/13/00     449.11        108.00  218.00   152.00
04/14/00     448.21        100.00  197.00   143.00
04/17/00     447.32        101.00  210.00   148.00
04/18/00     496.43        107.00  225.00   152.00
04/19/00     513.84        107.00  220.00   151.00
04/20/00     521.88        106.00  216.00   151.00
04/24/00     471.43        103.00  207.00   151.00
04/25/00     495.09        108.00  220.00   156.00
04/26/00     503.13        107.00  215.00   154.00
04/27/00     492.86        109.00  224.00   155.00
04/28/00     487.50        112.00  229.00   153.00
05/01/00     503.57        114.00  235.00   155.00
05/02/00     495.54        111.00  225.00   153.00
05/03/00     479.91        109.00  220.00   149.00
05/04/00     500.00        111.00  221.00   149.00
05/05/00     535.27        113.00  226.00   151.00
05/08/00     535.71        110.00  218.00   150.00
05/09/00     554.91        108.00  213.00   149.00
05/10/00     508.93        105.00  201.00   146.00
05/11/00     568.30        108.00  208.00   149.00
05/12/00     621.43        108.00  209.00   150.00
05/15/00     633.48        110.00  214.00   153.00
05/16/00     637.50        111.00  221.00   155.00
05/17/00     641.96        110.00  216.00   153.00
05/18/00     630.36        108.00  210.00   152.00
05/19/00     642.86        106.00  201.00   149.00
05/22/00     601.34        104.00  200.00   148.00
05/23/00     573.21        101.00  188.00   145.00
05/24/00     560.71        102.00  194.00   148.00
05/25/00     571.43        101.00  190.00   146.00
05/26/00     578.57        101.00  190.00   145.00
05/30/00     642.86        105.00  205.00   150.00
05/31/00     625.89        105.00  202.00   150.00
06/01/00     677.68        109.00  213.00   153.00
06/02/00     707.14        113.00  226.00   156.00
06/05/00     766.07        113.00  227.00   155.00
06/06/00     768.75        113.00  223.00   154.00
06/07/00     780.13        114.00  228.00   155.00
06/08/00     793.36        113.00  227.00   154.00
06/09/00     786.83        115.00  230.00   154.00
06/12/00     834.38        112.00  224.00   153.00
06/13/00     823.66        113.00  228.00   155.00
06/14/00     849.11        112.00  225.00   155.00
06/15/00     857.14        113.00  228.00   156.00
06/16/00     938.84        113.00  229.00   155.00
06/19/00    1017.86        115.00  237.00   157.00
06/20/00    1123.66        116.00  238.00   156.00
06/21/00    1081.47        116.00  241.00   156.00
06/22/00    1103.57        113.00  234.00   153.00
06/23/00    1146.43        112.00  228.00   152.00
06/26/00    1246.88        114.00  232.00   154.00
06/27/00    1214.73        112.00  229.00   153.00
06/28/00    1125.33        115.00  234.00   154.00
06/29/00    1113.62        113.00  230.00   152.00
06/30/00    1220.76        114.00  235.00   154.00
07/03/00    1285.88        115.00  237.00   155.00
07/05/00    1218.75        114.00  229.00   153.00
07/06/00    1187.95        115.00  235.00   154.00
07/07/00    1241.52        116.00  239.00   156.00
07/10/00    1212.72        117.00  236.00   156.00
07/11/00    1234.82        117.00  235.00   156.00
07/12/00    1447.77        119.00  243.00   158.00
07/13/00    1391.52        120.00  248.00   158.00
07/14/00    1394.20        120.00  252.00   159.00
07/17/00    1542.86        120.00  254.00   159.00
07/18/00    1569.64        118.00  248.00   158.00
07/19/00    1599.11        116.00  241.00   156.00
07/20/00    1642.63        118.00  248.00   158.00
07/21/00    1489.29        115.00  243.00   156.00
07/24/00    1343.97        113.00  236.00   155.00
07/25/00    1440.40        113.00  239.00   156.00
07/26/00    1449.11        113.00  237.00   153.00
07/27/00    1430.36        111.00  228.00   153.00
07/28/00    1374.11        108.00  217.00   150.00
07/31/00    1264.96        110.00  223.00   151.00
08/01/00    1182.59        110.00  219.00   152.00
08/02/00    1285.71        110.00  217.00   152.00
08/03/00    1284.38        110.00  223.00   153.00
08/04/00    1355.36        111.00  225.00   154.00
08/07/00    1558.26        112.00  229.00   156.00
08/08/00    1478.57        112.00  228.00   157.00
08/09/00    1516.07        112.00  229.00   155.00
08/10/00    1553.57        111.00  223.00   154.00
08/11/00    1541.52        112.00  225.00   155.00
08/14/00    1601.12        113.00  228.00   157.00
08/15/00    1601.79        112.00  228.00   157.00
08/16/00    1556.25        113.00  229.00   156.00
08/17/00    1542.86        114.00  234.00   158.00
08/18/00    1464.51        114.00  233.00   157.00
08/21/00    1447.10        114.00  235.00   158.00
08/22/00    1524.27        114.00  235.00   158.00
08/23/00    1571.15        114.00  238.00   159.00
08/24/00    1696.88        115.00  240.00   159.00
08/25/00    1667.41        116.00  240.00   159.00
08/28/00    1714.96        116.00  241.00   160.00
08/29/00    1827.46        117.00  242.00   159.00
08/30/00    1761.83        117.00  243.00   159.00
08/31/00    1697.54        119.00  250.00   160.00
09/01/00    1761.16        119.00  251.00   161.00
09/05/00    1822.77        119.00  246.00   159.00
09/06/00    1819.59        118.00  238.00   158.00
09/07/00    1842.86        120.00  243.00   159.00
09/08/00    1790.63        118.00  236.00   158.00
09/11/00    1737.05        118.00  231.00   157.00
09/12/00    1794.64        117.00  228.00   156.00
09/13/00    1821.43        118.00  231.00   157.00
09/14/00    1864.62        119.00  232.00   156.00
09/15/00    1813.39        117.00  228.00   155.00
09/18/00    1787.95        114.00  221.00   152.00
09/19/00    1687.50        115.00  229.00   154.00
09/20/00    1621.88        115.00  231.00   153.00
09/21/00    1343.30        113.00  227.00   153.00
09/22/00    1266.96        114.00  226.00   153.00
09/25/00    1366.07        114.00  222.00   152.00
09/26/00    1246.88        112.00  219.00   151.00
09/27/00    1137.05        112.00  217.00   151.00
09/28/00    1254.58        115.00  224.00   154.00
09/29/00    1296.76        115.00  218.00   152.00
10/02/00    1114.29        113.00  212.00   152.00
10/03/00    1181.25        111.00  205.00   151.00
10/04/00    1329.91        112.00  209.00   151.00
10/05/00    1309.49        111.00  206.00   152.00
10/06/00    1200.00        108.00  199.00   149.00
10/09/00    1317.52        108.00  199.00   148.00
10/10/00    1382.14        106.00  192.00   146.00
10/11/00    1473.21        105.00  188.00   144.00
10/12/00    1382.14        102.00  182.00   140.00
10/13/00    1605.80        106.00  197.00   145.00
10/16/00    1612.50        106.00  195.00   145.00
10/17/00    1585.71        104.00  191.00   143.00
10/18/00    1500.00        103.00  188.00   142.00
10/19/00    1581.70        106.00  203.00   147.00
10/20/00    1814.40        107.00  207.00   147.00
10/23/00    1872.32        108.00  206.00   147.00
10/24/00    1864.62        108.00  203.00   148.00
10/25/00    1623.21        105.00  192.00   144.00
10/26/00    1584.38        106.00  194.00   144.00
10/27/00    1589.73        106.00  194.00   146.00
10/30/00    1316.52        106.00  189.00   148.00
10/31/00    1520.09        110.00  200.00   151.00
11/01/00    1532.14        109.00  198.00   150.00
11/02/00    1655.36        112.00  203.00   151.00
11/03/00    1601.79        112.00  205.00   151.00
11/06/00    1612.83        111.00  203.00   151.00
11/07/00    1395.20        112.00  203.00   151.00
11/08/00    1234.82        110.00  192.00   149.00
11/09/00    1299.11        109.00  190.00   148.00
11/10/00    1266.96        106.00  180.00   144.00
11/13/00    1283.04        105.00  176.00   143.00
11/14/00    1286.72        107.00  186.00   146.00
11/15/00    1341.96        108.00  188.00   147.00
11/16/00    1329.91        106.00  180.00   145.00
11/17/00    1289.73        106.00  180.00   144.00
11/20/00    1130.36        104.00  171.00   142.00
11/21/00    1183.93        103.00  170.00   142.00
11/22/00    1092.86        101.00  163.00   140.00
11/24/00    1222.77        104.00  172.00   142.00
11/27/00    1321.88        104.00  171.00   142.00
11/28/00    1115.63        101.00  162.00   141.00
11/29/00    1080.80        100.00  161.00   142.00
11/30/00     906.70         98.00  154.00   139.00
12/01/00    1074.11        101.00  157.00   139.00
12/04/00    1141.07         99.00  155.00   140.00
12/05/00    1328.57        104.00  171.00   145.00
12/06/00    1241.52        102.00  166.00   143.00
12/07/00    1264.29        102.00  163.00   142.00
12/08/00    1395.54        106.00  173.00   145.00
12/11/00    1475.89        107.00  179.00   146.00
12/12/00    1331.25        105.00  174.00   145.00
12/13/00    1222.77        104.00  167.00   144.00
12/14/00    1118.30        102.00  162.00   142.00
12/15/00    1012.50        101.00  157.00   139.00
12/18/00     958.93        102.00  156.00   140.00
12/19/00     908.04        101.00  149.00   138.00
12/20/00     772.77         98.00  138.00   134.00
12/21/00     747.32         99.00  139.00   135.00
12/22/00     830.36        102.00  149.00   138.00
12/26/00     755.36        103.00  148.00   139.00
12/27/00     823.33        106.00  151.00   140.00
12/28/00     910.71        109.00  152.00   141.00
12/29/00     842.41        107.00  147.00   139.00


SOURCE: ROBERTSON STEPHENS AND FACTSET DATA SYSTEMS.

------------------------

*   This section of the proxy statement shall not be deemed to be incorporated
    by reference by any general statement incorporating by reference this proxy
    statement into any of our filings pursuant to the Securities Act of 1933, as
    amended, or the Securities Exchange Act of 1934, as amended, except to the
    extent we specifically incorporate this section by reference therein, and
    shall not be deemed soliciting material or otherwise deemed filed under
    either such Acts.

                                       17

                               OTHER INFORMATION

                 CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

    Mr. Jacoby, who is a member of the Board of Directors and the Compensation
Committee, serves as an officer of Stephens Group, Inc., our largest
stockholder, and Stephens Inc., a financial advisor to us and an affiliate of
Stephens Group, Inc. During the fiscal year, we paid Stephens Inc. for financial
advisory services, which included assisting us in our acquisitions of HC
Power, Inc. and Powec AS. We expect to pay Stephens Inc. for additional
financial advisory services that it has or may perform for us during 2001. All
compensation paid to Stephens Inc. has been on terms that we believe to be fair
and reasonable for the services performed.

                        FINANCIAL AND OTHER INFORMATION

    Our Annual Report for the fiscal year ended December 31, 2000, including
financial statements, is being sent to stockholders of record as of the close of
business on March 15, 2001 together with this proxy statement. We will furnish,
without charge, a copy of our Annual Report on Form 10-K for the fiscal year
ended December 31, 2000, as filed with the Securities and Exchange Commission,
to any stockholder who submits a written request to our corporate Secretary at
the address set forth on the cover of this proxy statement.

                                 OTHER MATTERS

    The Board of Directors knows of no other matters that have been submitted on
a timely basis for voting at this Annual Meeting. If any other matters come
before the stockholders at this Annual Meeting, the persons named on the
enclosed Proxy card intend to vote the shares they represent as the Board of
Directors may recommend.

                                          By Order of the Board of Directors,

                                          /s/ RANDALL H. HOLLIDAY
                                          Randall H. Holliday
                                          SECRETARY

Camarillo, California
April 4, 2001

                                       18

                            AUDIT COMMITTEE CHARTER
                                       OF
                                POWER-ONE, INC.

    The Audit Committee is appointed by the Board to assist the Board in
monitoring (1) the integrity of the financial statements of the Company and
(2) the independence and performance of the Company's external auditors. While
the Audit Committee has the responsibilities and powers set forth in this
Charter, it is the responsibility of management and the independent auditor, not
the Audit Committee, to plan or conduct audits and to determine that the
Company's financial statements are complete and accurate and are fairly
presented in accordance with generally accepted accounting principles. It is not
the duty of the Audit Committee to conduct investigations, to resolve
disagreements, if any, between management and the independent auditor or to
assure compliance with laws and regulations.

    There shall be at least two members of the Audit Committee; provided that by
June 14, 2001, there shall be at least three members of the Audit Committee. By
June 14, 2001, the members of the Audit Committee shall all be independent
directors as defined by the NASD, except as otherwise permitted by the rules of
the NASD. At such time, each member of the Audit Committee must be able to read
and understand fundamental financial statements, including the Company's balance
sheet, income statement and cash flow statement. At least one member of the
Audit Committee must have past employment experience in finance or accounting,
requisite professional certification in accounting, or other comparable
experience or background which results in the individual's financial
sophistication, including being or having been a chief executive officer, chief
financing officer or other senior officer with financial oversight
responsibilities.

    The Audit Committee shall elect one of its members as the chairman. The
Audit Committee shall meet at such times as determined by the Chairman, but no
less than four times per year.

    The Audit Committee shall have the authority to retain special legal,
accounting or other consultants to advise the Committee. The Audit Committee may
request any officer or employee of the Company or the Company's outside counsel
or independent auditor to attend a meeting of the Committee or to meet with any
members of, or consultants to, the Committee.

    The Audit Committee shall make regular reports to the Board.

    The Audit Committee shall:

     1. Review and reassess the adequacy of this Charter annually and recommend
        any proposed changes to the Board.

     2. Meet periodically, but no less than once per year, with management and
        the independent auditor to:

       a.  Review the annual audited financial statements, including major
           issues regarding accounting and auditing principles and practices as
           well as the adequacy of internal controls that could significantly
           affect the Company's financial statements.

       b.  Review an analysis prepared by management and the independent auditor
           of significant financial reporting issues and judgments made in
           connection with the preparation of the Company's financial
           statements.

       c.  Review the Company's major financial risk exposures and the steps
           management has taken to monitor and control such exposures.

       d.  Obtain reports from management and the independent auditor as to
           whether the Company and its subsidiaries are in conformity with
           applicable legal requirements.

                                      A-1

       e.  Review major changes to the Company's auditing and accounting
           principles and practices as suggested by the independent auditor or
           management.

     3. Review with management and the independent auditor the Company's
        quarterly financial statements prior to the release of quarterly
        earnings.

     4. Evaluate the performance of the independent auditor and recommend to the
        Board the appointment or replacement of the independent auditor, which
        firm is ultimately accountable to the Audit Committee and the Board.

     5. Review management's recommendation of and approve the fees to be paid to
        the independent auditor.

     6. Meet with the independent auditor prior to the audit to review the
        planning and staffing of the audit.

     7. Receive periodic reports from the independent auditor regarding the
        auditor's independence, discuss such reports with the auditor, and if so
        determined by the Audit Committee, recommend that the Board take
        appropriate action to insure the independence of the auditor.

     8. Discuss with the independent auditor the matters required to be
        discussed by Statement on Auditing Standards No. 61, as it may be
        modified or supplemented, relating to communications with the
        independent auditor.

     9. Review with the independent auditor any problems or difficulties the
        auditor may have encountered and any management letter provided by the
        auditor and the Company's response to that letter. Such review should
        include discussion of any difficulties encountered in the course of the
        audit work, including any restrictions on the scope of activities or
        access to required information.

    10. Prepare the report required by the rules of the Securities and Exchange
       Commission to be included in the Company's annual proxy statement.

    11. Review with the Company's General Counsel legal matters that may have a
       material impact on the financial statements, the Company's compliance
       policies and any material reports or inquiries received from regulators
       or governmental agencies.

    12. Meet at least annually with the chief financial officer and the
       independent auditor in separate executive sessions.

                                      A-2


                          PLEASE DATE, SIGN AND MAIL YOUR
                        PROXY CARD BACK AS SOON AS POSSIBLE!

                          ANNUAL MEETING OF STOCKHOLDERS
                                  POWER-ONE, INC.

                                    MAY 3, 2001




                   Please Detach and Mail in the Envelope Provided

A /X/ PLEASE MARK YOUR
      VOTES AS INDICATED
      IN THIS EXAMPLE.

                           WITHHOLD
                  FOR      AUTHORITY                                                                          FOR  AGAINST  ABSTAIN
1.  Election of   / /        / /         NOMINEES:    Class I Directors:   2. Proposal to ratify the          / /    / /      / /
    Directors                                         Steven J. Goldman       Appointment of Deloitte &
                                                      Jay Walters             Touche LLP as the Independent
For, except vote withheld for the                                             Auditors for the Company.
following nominees:
                                                                           3. In their discretion, the Proxies are authorized to
_____________________________________                                         vote upon such other business as may properly come
                                                                              before the meeting.

                                                                              THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN
                                                                           THE MANNER DIRECTED ON THE PROXY BY THE UNDERSIGNED
                                                                           STOCKHOLDER. IF NO DIRECTION IS MADE, THIS PROXY WILL BE
                                                                           VOTED FOR THE ELECTION OF THE NOMINEES TO THE BOARD
                                                                           LISTED IN PROPOSAL 1 AND FOR PROPOSALS 2 AND 3.

                                                                           PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY CARD
                                                                           PROMPTLY USING THE ENCLOSED RETURN ENVELOPE


_____________________________________  _______________________________________________  Dated:_________ , 2001
 (SIGNATURE)                           (SIGNATURE, IF HELD JOINTLY)

 NOTED: Please sign exactly as your name appears on this card. When shares are held by joint tenants, both should sign.
        If signing as attorney, guardian, executor, administrator or trustee, please give full title as such. If a
        corporation, please sign in the corporate name by the president or other authorized officer. If a partnership,
        please sign in the partnership name by an authorized person.






                                  POWER-ONE, INC.

                                      PROXY

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

         The undersigned having duly received the Notice of Annual Meeting and
      the Proxy Statement, hereby appoints the Chairman and Chief Executive
      Officer, Steven J. Goldman, the Chief Financial Officer, Eddie K. Schnopp,
      and the Secretary and General Counsel, Randall H. Holliday, as proxies
      (each with the power to act alone and with the power of substitution and
      revocation) to represent the undersigned and to vote, as designated on the
      reverse, all common shares of Power-One, Inc. held of record by the
      undersigned on March 15, 2001, at the Annual Meeting of Stockholders to be
      held on Thursday, May 3, 2001 at the Renaissance Agoura Hills Hotel,
      located at 30100 Agoura Road, Agoura Hills, California at 10:00 a.m. Los
      Angeles time, and at any adjournment thereof.

                             (CONTINUED ON OTHER SIDE)