GENERAL COMMUNICATIONS/DIRECTOR NOMINEE RECOMMENDATIONS
Stockholders are welcome to communicate directly with our Board of Directors. Stockholders interested in communicating directly with any or all non-employee directors, and stockholders interested in recommending director nominees, may do so by writing to:

Board of Directors
Power-One, Inc.
740 Calle Plano
Camarillo, CA 93012
Attn: Corporate Secretary

All such correspondence will be logged in by the Corporate Secretary and promptly forwarded to our Lead Director. The Lead Director will deliver a summary of all shareholder communications to the full Board at its next regularly scheduled meeting. Any director may review the correspondence log and request copies of any such correspondence.

COMPLAINTS
Any person desiring to submit any complaint to the Company regarding accounting, internal accounting controls, or auditing matters should address such complaint to:

Chairman of the Audit Committee
Power-One, Inc.
740 Calle Plano
Camarillo, CA 93012
Attn: Corporate Secretary

All such correspondence will be logged in by the Corporate Secretary and promptly forwarded to the Chairman of the Audit Committee. The Chairman will provide a summary of all communications to the Audit Committee, and will direct and oversee such additional actions or inquiries as the Chairman deems appropriate in light of a given complaint.