Incandescent light bulbs waste 90% of their energy as heat and use as much as 10 times the amount of electricity as LED light bulbs. If every household in the United States replaced one incandescent light bulb with a compact fluorescent or LED light bulb, it would be equivalent to removing one million cars from the road. Every year 600 million light bulbs are thrown away, adding 30,000 pounds of mercury waste to U.S. landfills. Regardless of the type, always dispose of light bulbs properly.
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