Compact fluorescent lamp

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fluorescent bulb

A light source consisting of a long glass tube containing mercury in a partial vacuum. Available in many lengths and several diameters, the tube is lined with a fluorescent phosphor. When the mercury is excited by electricity, it emits ultraviolet (UV) light, which causes the phosphor to emit visible light. Fluorescent lamps have been widely used in commercial buildings for decades, because they use considerably less power and last much longer than incandescent lighting. However, due to their tubular design and cooler color temperatures, they have not been generally welcome in the home.

The Compact Fluorescent Lamp (CFL)
Compact fluorescents are designed to replace the standard incandescent bulb and screw into everyday table lamps and lighting fixtures. They are available in soft, warm hues like incandescent bulbs. See fluorescence, incandescent bulb, halogen bulb, LED bulb and color temperature.


CFL Coils and U's
Instead of straight tubes, coiled and U-shaped CFL tubes screw into the standard Edison base in incandescent lamps and fixtures. See Edison base.

Compact fluorescent lamp

Fluorescent light bulb in which the tube is folded or twisted into a spiral to concentrate the light output. Compact fluorescent lamps (CFLs) are typically three to four times as efficient as incandescent light bulbs and last 8–10 times as long. CFLs combine the efficiency of fluorescent light with the convenience of an Edison or screw-in base, and new types have been developed that better mimic the light quality of incandescents. Not all CFLs can be dimmed, and frequent on-off cycling can shorten their life. Concerns have been raised over the mercury content of CFLs, and though they have been deemed safe, proper recycling and disposal are encouraged.
References in periodicals archive ?
A compact fluorescent light bulb uses 75 percent less energy than a regular bulb, and can last up to four years.
The entries ranged from the elegantly practical, such as a compact fluorescent light bulb with a replaceable tube, to the simply bizarre.
Have your teacher screw in a 13-watt compact fluorescent light bulb.
So next time one of your incandescent bulbs burns out, why not consider replacing it with a compact fluorescent light bulb? The many benefits make the switch as easy as turning on a light!
During the launch of the program, each REbag handed out to shoppers at each of Metropolitan's six locations included a "Get Started Guide" with energy-saving tips provided by the energy conservation group, plus one Sylvania compact fluorescent light bulb..
Don't make a special trip, but the next time you go shopping, please buy an energy-saving compact fluorescent light bulb. Take it home and replace one incandescent light bulb.
replaced one light bulb with an Energy Star qualified compact fluorescent light bulb (CFL), it would prevent enough pollution to equal removing one million cars from the road.
Even the compact fluorescent light bulb above my head comes from data shared by researchers over centuries about electricity, properties of glass, and centralized power.
From a new exhibitor, Firefly Alternative Energy Group, the Lunet Lighting Cover promises to cut glare of a compact fluorescent light bulb placed in a recessed fixture or other down light.
When your light bulb comes on, be like Lee Scott: Make sure it's a compact fluorescent light bulb.
Install at least one compact fluorescent light bulb. You'll save an average of $38 in electricity bills and replacement bulbs, and reduce carbon-dioxide emissions from your power plant by over 700 pounds!

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