andrewducker + efficiency   37

How low-energy LEDs could soon be lighting our homes.
LEDs are very energy-efficient. But there's a catch. Although 70% of the energy is converted to light, just 20% of that light escapes. Dr Faiz Rahman is putting millions of holes into light emitting diodes to make them brighter.
lighting  efficiency  energy  LED  technology 
may 2008 by andrewducker

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