Facts About Energy-saving Light Bulbs
Energy-saving light bulbs, also called compact fluorescent lamps, have become a popular alternative to incandescent bulbs. The original fluorescent bulbs were created by Peter Cooper Hewitt in the late 19th Century, and General Electric started selling a version of the bulb in 1938. A modern version of the CFL was created in the 1970s. Does this Spark an idea?
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Function
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Gas-filled glass tubes combine with an electrical current and a phosphorescent coating on the tube to create the bulb's light.
Power Sources
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Compact fluorescent bulbs can be operated on both AC and DC power.
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Benefits
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The increased efficiency of CFLs results in a savings of $30 in electricity over the bulb's lifespan.
Longer Life
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Compact fluorescent lamps can last up to 15,000 hours; their incandescent counterparts have a lifespan of 1,000 hours.
Environmental Concerns
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All compact fluorescent lamps contain mercury, which makes their disposal more difficult and requires them to be sent to special recycling facilities.
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