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/cloudfront-us-east-1.images.arcpublishing.com/gray/DR47BOT2YFHZZGLW5RHFF7HZXU.jpg "Earth Day: LED lights could cut utilities by 60 percent")
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We went from regular incandescent bulbs to CFL, halogen, and now LED, but all with the same screw-in base, for backwards compatibility. What do you predict will eventually replace the current LED-powered
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