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 ?
LM-66-14 addresses the methods for obtaining uniform and reproducible measurements of the electrical and photometric characteristics of single-based compact fluorescent, for both electrode and electrodeless lamps, under standard conditions in alternating current, both line and high frequency, circuits.
These solutions were exposed to compact fluorescent lamp radiation for various times at 20 cm distance.
Look for Energy Star certified appliances: When shopping for appliances or compact fluorescent light bulbs, look for products that have received Energy Star certification -- meaning that the products meet guidelines for energy efficiency as set by an independent certifier.
There are now high-efficiency bulbs that yield the same quantity and quality of light as incandescents while using just 25% of the electricity; photosensors that dim lights whenever sunlight is available; and mirror-like reflectors that provide the same quality of light with half as many fluorescent lamps; as well as compact fluorescents.
Compact Fluorescent Lamps (CFLs) are developed for use in those applications that were traditionally the province of incandescent lamps.
A spokeswoman for GE Lighting: "There are ongoing developments in all light source categories, but maybe most significant is the growing popularity of energy-efficient compact fluorescent lamps and halogen lights in homes in a variety of applications.
Another important new lighting technology that is even more cost efficient than compact fluorescent bulbs is the E-lamp.
Other innovations that have helped bring renewable energy into the hands of consumers are energy-efficient appliances such as refrigerators that consume as little as 36 kilowatt hours per month and compact fluorescent light bulbs which burn less electricity than incandescent household lights.
LED lights offer three times the efficiency of compact fluorescent lamps and 12 times that of incandescents.
Under the program, which commenced in 2006, the government is replacing high energy-use incandescent bulbs in homes and offices with energy-saving compact fluorescent bulbs donated by the Cuban government.
The company has redesigned the packaging for all of its product lines, which encompass compact fluorescent, halogen, xenon, specialty and incandescent light bulbs.

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