August 12, 2009 5:01 PM

A bright idea: LED light bulbs yield big savings in energy

One way the United States could slash its electricity use, dependence on fossil fuels and emissions of heat-trapping gases is really quite simple: better light bulbs. Lighting consumes 22 percent of electricity in the United States. If American homes could be switched to so-called solid state lighting, that would save the amount of electricity produced by 40 large power plants.

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