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A CFL (Compact Fluorescent Lamp) bulb is made of glass, a ceramic and metal base, a powder called phosphor, and a small amount of mercury.

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Bright white and day light CFL bulbs produce a cooler (bluer) light than incandescent lamps. Studies have shown that the human eye can see clearer and with more detail in the bluer light spectrum. Consider whiter CFL bulbs for reading, sewing or  any detailed task.

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If every household replaced its most commonly used incandescent light bulbs with CFLs, electricity use for lighting could be cut in half. Doing so would lower our annual carbon dioxide emissions by about 125 billion pounds. This action alone could halt the growth in carbon dioxide emissions from the United States, given recent growth rates.

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Electricity production is the largest source of greenhouse gas emissions in the U.S., and lighting accounts for about 25 percent of American electricity consumption.

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Standard incandescent bulbs produce light by heating a filament wire until it glows white hot. Incandescent are about 15% efficient at producing light and 85% efficient at producing heat.

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If every household in the U.S. replaced one light bulb with a CFL, it would prevent enough pollution to equal removing one million cars from the road.

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CFLs last about eight times as long as incandescent bulbs. They only need to be replaced every five to six years.

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Only 11 percent of available light bulb sockets in US homes have a CFL as of 2009.

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Standard incandescent lamps produce a yellowish light. CFL Bulbs are available in a variety of light colors including warm white (like incandescent), bright white (bluer than incandescent) and full spectrum (like sunlight).

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By using CFLs, the energy saved would actually reduce mercury emissions released from coal-fired power plants.

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CFLs use one quarter the energy of an incandescent light bulb.

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The amount of mercury in a CFL bulb is very, very small. The mercury in the bulb is in the form of an invisible vapor or a mercury bead. The bead is about the size of the period at the end of this sentence. A mercury fever thermometer has about 100 times more mercury than a CFL bulb.

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CFLs are safe to use. The risk of harm from a broken CFL bulb is very small. These bulbs use a lot less energy than regular light bulbs. Using CFLs cuts down significantly on the amount of mercury put into the air from coal-burning power plants.

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As of 2009; Thirty percent of all homes in the US own NO CFLs. Sixty four percent of households that own CFLs have five or fewer.

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By installing CFLs in their most commonly used light fixtures, consumers will do more for the environment and for their own pocketbooks. If more households did this, we could take an important step towards protecting the planet from global warming.

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Replacing one incandescent light bulb with an energy saving CFL bulb would reduce carbon monoxide emissions to the atmosphere by 1,000 pounds.

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CFLs provide the same amount of light (lumens) as standard incandescent bulbs, but have lower wattage ratings.