Steven Castle opinion, January 15, 2008 - 1:43 pm
External Power Supplies Get More Efficient
Requirements are coming, and here’s how to tell if you have an energy-efficient one.
You may have heard about new efficiency standards for external power supplies used by laptop computers, printers, cordless telephone systems, and a host of other electronics products. These power supplies, also known as AC/DC adapters, “bricks” or “wall warts,” transform AC power that comes from the electrical outlet to DC power that sensitive electronics can handle—and they can be quite inefficient. Until recently. Newer external power supplies that meet the current, voluntary Energy Star requirements can achieve efficiency levels of…
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Steve Castle is a striving environmentalist and senior editor for Electronic House Magazine.
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