Or so say executives at Cree, a lighting company that has started selling affordable LED lightbulbs that outwardly resemble the traditional, energy-hogging incandescent bulbs of old. The company claims that its new 60 watt-equivalent LED bulb, which costs $13 or $14 depending on which variety you buy, lasts 25 times longer and uses 84 percent less juice than does a traditional lightbulb.
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