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  <p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  
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  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WASHINGTON, D.C. 20549</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d)&nbsp;of the</font></b>
  <b>Securities Exchange Act of 1934</b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date
  of Report (Date of earliest event reported):&nbsp;<b>April&nbsp;22,
  2008</b></font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">Power-One,&nbsp;Inc.</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact Name of Registrant as
  Specified in its Charter)</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
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    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">000-29454</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">77-0420182</font></b></p>
    </td>
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    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or Other Jurisdiction of Incorporation)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission File Number)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(I.R.S. Employer Identification No.)</font></p>
    </td>
   </tr>
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    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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    <td width="66%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:66.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">740 Calle Plano<br>
    Camarillo, California</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="bottom" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">93012</font></b></p>
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    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of Principal Executive Offices)</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Zip Code)</font></p>
    </td>
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  </div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(805) 987-8741</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant&#146;s Telephone Number, Including Area Code)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Not applicable</font></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Former name or
  former address, if changed since last report.)</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;8-K
  filing is intended to simultaneously satisfy the filing obligation of the
  registrant under any of the following provisions:</font></p>
  
  <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
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    <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.08%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
    </td>
    <td width="96%" valign="top" style="padding:0in 0in 0in 0in;width:96.92%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Written communications pursuant to Rule&nbsp;425
    under the Securities Act (17 CFR 230.425)</font></p>
    </td>
   </tr>
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    <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.08%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="96%" valign="top" style="padding:0in 0in 0in 0in;width:96.92%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
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    <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.08%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
    </td>
    <td width="96%" valign="top" style="padding:0in 0in 0in 0in;width:96.92%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Soliciting material pursuant to Rule&nbsp;14a-12 under
    the Exchange Act (17 CFR 240.14a-12)</font></p>
    </td>
   </tr>
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    <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.08%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="96%" valign="top" style="padding:0in 0in 0in 0in;width:96.92%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.08%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
    </td>
    <td width="96%" valign="top" style="padding:0in 0in 0in 0in;width:96.92%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pre-commencement communications pursuant to
    Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b))</font></p>
    </td>
   </tr>
   <tr>
    <td width="3%" valign="top" style="padding:0in 0in 0in 0in;width:3.08%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="96%" valign="top" style="padding:0in 0in 0in 0in;width:96.92%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
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    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font></p>
    </td>
    <td width="96%" valign="top" style="padding:0in 0in 0in 0in;width:96.92%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pre-commencement communications pursuant to
    Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240.13e-4(c))</font></p>
    </td>
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  </table>
  
  <div style="border:none;border-bottom:double windowtext 6.0pt;padding:0in 0in 0in 0in;">
  
  <p align="center" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  </div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="margin:0in 0in .0001pt;text-autospace:none;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='',FILE='C:\JMS\105621\08-12796-1\task2899023\12796-1-ba.htm',USER='105621',CD='Apr 29 00:57 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div style="font-family:Times New Roman;">
  
  <p style="margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 5.02</font></b><b><font size="1" style="font-size:8.5pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Departure of Directors or Certain
  Officers; Election of Directors; Appointment of Certain Officers; Compensatory
  Arrangements of Certain Officers.</font></b></p>
  
  <p style="margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">2004 Stock Incentive Plan</font></u></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The
  Board of Directors (the &#147;Board&#148;) of Power-One,&nbsp;Inc. (the &#147;Company&#148;)
  previously approved, subject to stockholder approval, certain amendments to the
  Company&#146;s 2004 Stock Incentive Plan (the &#147;2004 Plan&#148;).&#160; The first amendment increased the individual
  award sub-limits under the 2004 Plan from 500,000 shares to 1,500,000 shares,
  such that under the 2004 Plan, the maximum number of shares that may be subject
  to awards granted to any individual in a calendar year, and the maximum number
  of shares that may be subject to stock options and stock appreciation rights
  granted to any individual in a calendar year, is now 1,500,000 shares.&#160; The second amendment extended the Company&#146;s
  authority to grant new awards under the 2004 Plan that are intended to qualify
  as performance-based compensation within the meaning of Section&nbsp;162(m)&nbsp;of
  the U.S. Internal Revenue Code through the first annual meeting of our
  stockholders that occurs in 2013.&#160; None
  of these amendments increased the 2004 Plan&#146;s existing limits on the total
  number of shares that may be delivered under the 2004 Plan, or the limits on
  the total number of shares that may be delivered as so-called &#147;full value
  awards&#148; under the 2004 Plan.&#160; At our
  annual meeting of stockholders held on April&nbsp;22, 2008 (the &#147;Annual Meeting&#148;),
  the Company&#146;s stockholders approved both of the foregoing amendments to the
  2004 Plan.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The
  foregoing description of the amendments is qualified in its entirety by
  reference to the text of the amended version of the 2004 Plan, which is filed
  as Exhibit&nbsp;10.1 hereto and incorporated herein by reference.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">2008 Management Incentive Plan</font></u></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On April&nbsp;22,
  2008, the Board approved the Company&#146;s 2008 Management Incentive Plan (the &#147;2008
  Plan&#148;).&#160; The 2008 Plan provides bonus
  opportunities with respect to fiscal 2008 for certain of the Company&#146;s senior
  officers, including our principal executive officer and all of our executive
  officers who were named in the summary compensation table included in the
  Company&#146;s Proxy Statement filed with the SEC with respect to the Annual Meeting
  who are current employees of the Company (the &#147;Named Executive Officers&#148;).&#160; Each participant in the 2008 Plan has a
  target incentive amount that is expressed as a percentage of the participant&#146;s
  base salary.&#160; The target incentive
  amounts for our principal executive officer and our Named Executive Officers
  are equal to the following percentages of their respective base salaries: Mr.&nbsp;Thompson
  (75%), Mr.&nbsp;Levran (45%), Mr.&nbsp;Godfrey (45%), Mr.&nbsp;Kyle (38%) and Mr.&nbsp;Holliday
  (30%).&#160; Each participant&#146;s actual bonus
  earned under the 2008 Plan may range from 0% to a maximum of 150% of the
  participant&#146;s target bonus, with the actual bonus earned determined based on
  performance during the final three quarters of fiscal 2008.&#160; Mr.&nbsp;Thompson&#146;s bonus under the 2008 Plan
  becomes earned based on the Company&#146;s attainment of targeted levels of revenue,
  net income and increases in the Company&#146;s cash flow, with each Company
  performance goal weighted equally.&#160; 75%
  of Messrs.&nbsp;Levran&#146;s, Godfrey&#146;s, Kyle&#146;s and Holliday&#146;s bonus under the 2008
  Plan becomes earned based on the Company&#146;s attainment of targeted levels of
  revenue and earnings before interest, taxes, depreciation and amortization
  (with each Company performance goal weighted equally), while the other 25% of
  the bonus for these Named Executive Officers becomes earned based on individual
  performance objectives.&#160; With respect to
  each Company performance goal, achievement of 100% of the goal will result in a
  payment of 100% of the target bonus attributable to the goal, achievement of
  120% or more of the goal will result in a payment of 150% of the target bonus
  attributable to the goal, while achievement of less than 80% of the goal will
  result in 0% of the target bonus attributable to the goal being paid.&#160; The individual goals work similarly, as
  individual performance that fully achieves the performance objective will
  result in a payout of 100% of the target bonus attributable to the individual
  goal, while individual performance that significantly exceeds the performance
  objective will result in a payout of 150% of the target bonus attributable to
  the individual goal, and a failure to achieve the individual performance
  objective will result in a payout of 0% of the target bonus attributable to the
  individual goal.&#160;&#160; Individual or Company
  performance between the performance points described above will result in a
  proportionate bonus payment for the relevant goal that will be determined on a
  linear basis between performance points.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Even
  if the Company and individual performance goals described above are achieved,
  the Company must also achieve positive net income (calculated before any
  reduction for 2008 bonuses and excluding restructuring costs and other
  extraordinary items approved by the Company&#146;s compensation committee) in order
  for the participants&#146; bonuses to become funded and payable.&#160; If the Company does achieve positive net
  income, 35% of such positive net income will be made available to fund any
  target bonuses earned under the 2008 Plan, while 40% of such positive </font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>
  
  <div style="margin:0in 0in .0001pt;text-indent:0in;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='2',FILE='C:\JMS\105621\08-12796-1\task2899023\12796-1-ba.htm',USER='105621',CD='Apr 29 00:57 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div style="font-family:Times New Roman;">
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">net income will be made available to fund any bonuses
  earned in excess of target levels, up to the maximum bonus amounts approved
  under the 2008 Plan.&#160; If the Company does
  not achieve positive net income, no bonuses will be paid to any participants in
  the 2008 Plan.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Financial Statements and
  Exhibits.</font></b></p>
  
  <p style="margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt .5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><i><font size="2" style="font-size:10.0pt;font-style:italic;">Exhibits</font></i></p>
  
  <p style="margin:0in 0in .0001pt .5in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="14%" valign="bottom" style="padding:0in 0in 0in 0in;width:14.42%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.92%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="82%" valign="bottom" style="padding:0in 0in 0in 0in;width:82.66%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="14%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:14.42%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Number</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.92%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="82%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:82.66%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Description</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="14%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:14.42%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.92%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="82%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:82.66%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="14%" valign="top" style="padding:0in 0in 0in 0in;width:14.42%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Exhibit&nbsp;10.1</font></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.92%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="82%" valign="top" style="padding:0in 0in 0in 0in;width:82.66%;">
    <p style="margin:0in 0in .0001pt;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Power-One,&nbsp;Inc. 2004 Stock Incentive Plan, as
    amended.</font></p>
    </td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-indent:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>
  
  <div style="margin:0in 0in .0001pt;text-indent:0in;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='3',FILE='C:\JMS\105621\08-12796-1\task2899023\12796-1-ba.htm',USER='105621',CD='Apr 29 00:57 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div style="font-family:Times New Roman;">
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><u><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURE</font></u></b></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="line-height:normal;margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant
  to the requirements of the Securities Exchange Act of 1934, the Registrant has
  duly caused this report to be signed on its behalf by the undersigned hereunto
  duly authorized.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div align="center">
  
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    <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">POWER-ONE, INC.</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><i><font size="2" face="Times New Roman" style="font-size:1.0pt;font-style:italic;">&nbsp;</font></i></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
    <p style="margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:1.0pt;font-style:italic;">&nbsp;</font></i></p>
    </td>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">(Registrant)</font></i></p>
    </td>
   </tr>
   <tr>
    <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">&nbsp;</font></i></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
    <p style="margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">&nbsp;</font></i></p>
    </td>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">&nbsp;</font></i></p>
    </td>
   </tr>
   <tr>
    <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
    </td>
    <td width="47%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:47.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/</font><font size="2" style="font-size:10.0pt;">JEFFREY
    J. KYLE</font></p>
    </td>
   </tr>
   <tr>
    <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.0%;">
    <p style="margin:0in 0in .0001pt 46.1pt;text-indent:-10.1pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:</font></p>
    </td>
    <td width="36%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:36.92%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">April&nbsp;28,
    2008</font></p>
    </td>
    <td width="2%" valign="top" style="padding:0in 0in 0in 0in;width:2.08%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="47%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:47.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Jeffrey J. Kyle&nbsp;&nbsp;&nbsp;&nbsp;</font><font size="1" style="font-size:8.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
    <p style="margin:0in 0in .0001pt;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;text-autospace:none;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Vice President &#150;Finance, Treasurer and Chief<br>
    Financial Officer</font></p>
    </td>
   </tr>
   <tr height="0">
    <td width="82" style="border:none;"></td>
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  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='4',FILE='C:\JMS\105621\08-12796-1\task2899023\12796-1-ba.htm',USER='105621',CD='Apr 29 00:57 2008' -->
  
  
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text: UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  WASHINGTON, D.C. 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 or 15(d) of the
  Securities Exchange Act of 1934
  Date
  of Report (Date of earliest event reported):
  April 22,
  2008
  Power-One, Inc.
  (Exact Name of Registrant as
  Specified in its Charter)
  Delaware
  000-29454
  77-0420182
  (State or Other Jurisdiction of Incorporation)
  (Commission File Number)
  (I.R.S. Employer Identification No.)
  740 Calle Plano
  Camarillo, California
  93012
  (Address of Principal Executive Offices)
  (Zip Code)
  (805) 987-8741
  (Registrant's Telephone Number, Including Area Code)
  Not applicable
  (Former name or
  former address, if changed since last report.)
  Check the appropriate box below if the Form 8-K
  filing is intended to simultaneously satisfy the filing obligation of the
  registrant under any of the following provisions:
  o
  Written communications pursuant to Rule 425
    under the Securities Act (17 CFR 230.425)
  o
  Soliciting material pursuant to Rule 14a-12 under
    the Exchange Act (17 CFR 240.14a-12)
  o
  Pre-commencement communications pursuant to
    Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  o
  Pre-commencement communications pursuant to
    Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  Item 5.02
  Departure of Directors or Certain
  Officers; Election of Directors; Appointment of Certain Officers; Compensatory
  Arrangements of Certain Officers.
  2004 Stock Incentive Plan
  The
  Board of Directors (the "Board") of Power-One, Inc. (the "Company")
  previously approved, subject to stockholder approval, certain amendments to the
  Company's 2004 Stock Incentive Plan (the "2004 Plan").  The first amendment increased the individual
  award sub-limits under the 2004 Plan from 500,000 shares to 1,500,000 shares,
  such that under the 2004 Plan, the maximum number of shares that may be subject
  to awards granted to any individual in a calendar year, and the maximum number
  of shares that may be subject to stock options and stock appreciation rights
  granted to any individual in a calendar year, is now 1,500,000 shares.  The second amendment extended the Company's
  authority to grant new awards under the 2004 Plan that are intended to qualify
  as performance-based compensation within the meaning of Section 162(m) of
  the U.S. Internal Revenue Code through the first annual meeting of our
  stockholders that occurs in 2013.  None
  of these amendments increased the 2004 Plan's existing limits on the total
  number of shares that may be delivered under the 2004 Plan, or the limits on
  the total number of shares that may be delivered as so-called "full value
  awards" under the 2004 Plan.  At our
  annual meeting of stockholders held on April 22, 2008 (the "Annual Meeting"),
  the Company's stockholders approved both of the foregoing amendments to the
  2004 Plan.
  The
  foregoing description of the amendments is qualified in its entirety by
  reference to the text of the amended version of the 2004 Plan, which is filed
  as Exhibit 10.1 hereto and incorporated herein by reference.
  2008 Management Incentive Plan
  On April 22,
  2008, the Board approved the Company's 2008 Management Incentive Plan (the "2008
  Plan").  The 2008 Plan provides bonus
  opportunities with respect to fiscal 2008 for certain of the Company's senior
  officers, including our principal executive officer and all of our executive
  officers who were named in the summary compensation table included in the
  Company's Proxy Statement filed with the SEC with respect to the Annual Meeting
  who are current employees of the Company (the "Named Executive Officers").  Each participant in the 2008 Plan has a
  target incentive amount that is expressed as a percentage of the participant's
  base salary.  The target incentive
  amounts for our principal executive officer and our Named Executive Officers
  are equal to the following percentages of their respective base salaries: Mr. Thompson
  (75%), Mr. Levran (45%), Mr. Godfrey (45%), Mr. Kyle (38%) and Mr. Holliday
  (30%).  Each participant's actual bonus
  earned under the 2008 Plan may range from 0% to a maximum of 150% of the
  participant's target bonus, with the actual bonus earned determined based on
  performance during the final three quarters of fiscal 2008.  Mr. Thompson's bonus under the 2008 Plan
  becomes earned based on the Company's attainment of targeted levels of revenue,
  net income and increases in the Company's cash flow, with each Company
  performance goal weighted equally.  75%
  of Messrs. Levran's, Godfrey's, Kyle's and Holliday's bonus under the 2008
  Plan becomes earned based on the Company's attainment of targeted levels of
  revenue and earnings before interest, taxes, depreciation and amortization
  (with each Company performance goal weighted equally), while the other 25% of
  the bonus for these Named Executive Officers becomes earned based on individual
  performance objectives.  With respect to
  each Company performance goal, achievement of 100% of the goal will result in a
  payment of 100% of the target bonus attributable to the goal, achievement of
  120% or more of the goal will result in a payment of 150% of the target bonus
  attributable to the goal, while achievement of less than 80% of the goal will
  result in 0% of the target bonus attributable to the goal being paid.  The individual goals work similarly, as
  individual performance that fully achieves the performance objective will
  result in a payout of 100% of the target bonus attributable to the individual
  goal, while individual performance that significantly exceeds the performance
  objective will result in a payout of 150% of the target bonus attributable to
  the individual goal, and a failure to achieve the individual performance
  objective will result in a payout of 0% of the target bonus attributable to the
  individual goal.   Individual or Company
  performance between the performance points described above will result in a
  proportionate bonus payment for the relevant goal that will be determined on a
  linear basis between performance points.
  Even
  if the Company and individual performance goals described above are achieved,
  the Company must also achieve positive net income (calculated before any
  reduction for 2008 bonuses and excluding restructuring costs and other
  extraordinary items approved by the Company's compensation committee) in order
  for the participants' bonuses to become funded and payable.  If the Company does achieve positive net
  income, 35% of such positive net income will be made available to fund any
  target bonuses earned under the 2008 Plan, while 40% of such positive
  2
  net income will be made available to fund any bonuses
  earned in excess of target levels, up to the maximum bonus amounts approved
  under the 2008 Plan.  If the Company does
  not achieve positive net income, no bonuses will be paid to any participants in
  the 2008 Plan.
  Item 9.01
  Financial Statements and
  Exhibits.
  (d)
  Exhibits
  Exhibit
  Number
  Description
  Exhibit 10.1
  Power-One, Inc. 2004 Stock Incentive Plan, as
    amended.
  3
  SIGNATURE
  Pursuant
  to the requirements of the Securities Exchange Act of 1934, the Registrant has
  duly caused this report to be signed on its behalf by the undersigned hereunto
  duly authorized.
  POWER-ONE, INC.
  (Registrant)
  By:
  /s/
  JEFFREY
    J. KYLE
  Date:
  April 28,
    2008
  Jeffrey J. Kyle
  Vice President –Finance, Treasurer and Chief
  Financial Officer
  4