Cause of LED 'efficiency droop' identified

[unable to retrieve full-text content]Researchers have identified the mechanism behind a plague of LED light bulbs: a flaw called "efficiency droop" that causes LEDs to lose up to 20 percent of their efficiency as they are subjected to greater electrical currents.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/top_news/top_technology/~3/Yd4YgJgQL6U/130730150658.htm

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