Power-One Sets Date for 2013 First Quarter Earnings Release

Power-One Sets Date for 2013 First Quarter Earnings Release

CAMARILLO, Calif., April 23, 2013 (GLOBE NEWSWIRE) -- In conjunction with
Power-One, Inc.'s (Nasdaq:PWER) 2013 first quarter financial results
announcement, members of the public are invited to listen to the company's
live quarterly conference call on the Internet on Thursday, May 2, 2013 at
2:00 p.m. Pacific Time/5:00 p.m. Eastern Time. The purpose of the conference
call is to discuss the company's 2013 first quarter financial results. The
conference call will feature Richard Thompson, Chief Executive Officer and
Gary Larsen, Chief Financial Officer.

Financial results will be released over the newswires after the market closes
on Thursday, May 2, 2013. The press release will also be posted on Power-One's
corporate website. The call will be available both via the telephone at (877)
390-5535 or (631) 291-4579, conference ID #48041529, or over the Internet
through the Power-One investor relations website at:
http://investor.power-one.com/events.cfm. To listen to the call, please log-in
at least ten minutes early to register, download, and install any necessary
audio software. An online re-broadcast of the call will also be available on
the site.

Power-One's 2013First Quarter Conference Call Info

Date: Thursday, May 2, 2013

Time: 2:00 p.m. Pacific Time/5:00 p.m. Eastern Time

Access: Available on the web at www.Power-One.com

About Power-One

Power-One is a leading provider of renewable energy and energy-efficient power
conversion and power management solutions and is the world's second largest
designer and manufacturer of photovoltaic inverters. Its renewable energy
products enable the industry's highest yielding conversion of power from solar
arrays for use by utilities, commercial enterprises and homes.Power-One has a
40 year history as the leader in high efficiency and high density power supply
products for a variety of industries including Renewable Energy, Data Storage
& Networking, Industrial and Network Power Systems.The company is
headquartered in Camarillo, CA and has global sales offices, manufacturing,
and R&D operations in Asia, Europe, and the Americas. Power-One is traded on
NASDAQ under the ticker symbol PWER. For more information, please visit

CONTACT: Investor Contact:
         Larry Clark
         Investor Relations for Power-One
         (310) 478-2700 ext. 29

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