Recently I spent an afternoon changing all the light bulbs in my home to fluorescent devices. It's not mandatory in the U.S., but it saves energy. In places where it is mandatory, like England, ...
Three: a halogen, a CFL, and an LED. (Rimshot.) Don't get it? You will on Jan. 1, 2014. That's when manufacturers will stop producing 60-watt and 40-watt incandescent lightbulbs to comply with a ...
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