fluorescent bulb

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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.
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Fluorescent bulb

Introduced in 1930, the bulb produces light by passing an electrical current through a gas-filled tube. Available in either warm or cool light, with long bulbs that fit into a ballast, which can be mounted onto a ceiling or under cabinets.
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References in periodicals archive ?
The sconces already had florescent bulbs, so I left them alone.
I bought a few three-way florescent bulbs, but where no one would notice, I simply put in a 100-watt replacement LED.
Additional storage compartments can hold ladders and florescent bulbs, while the cart's work surface is covered with a black rubber mat for durability.
The firm unveiled five new lighting appliances using LEDs or florescent bulbs, which will go on sale Tuesday or later.
Adams advised people struggling with high power bills to conserve electricity, starting with the simple step of replacing standard incandescent light bulbs with power-saving compact florescent bulbs. Those bulbs use 75 percent less energy than standard ones, and replacing just five of the most frequently used bulbs would save the average household about $92 a year.
The worldwide "Ban the Bulb" movement is gaining ground, as various nations set goals to phase out the use and sale of incandescent light bulbs in favor of compact florescent bulbs, which are more efficient, reduce carbon emissions and air pollution, and save consumers money.
Efficiency: Energy Star appliances, florescent bulbs, high efficiency water heaters, fifty year shingles, low flow faucets and showerheads, sealed crawl spaces, cellulose and icynene insulation, solar preheat for hot water
I want to point out something minor regarding the use of compact florescent bulbs instead of incandescent bulbs.
Compact florescent bulbs advertise a long life, but this life assumes that the lamps stay on for at least three hours at a time.