 Compact fluorescent light bulb A compact fluorescent light bulb (CFL bulb) is a type of fluorescent lamp which screws into a regular light bulb socket, or plugs into a small lighting fixture. "Bulb" is something of a misnomer, unless the lamp is specially manufactured with a bulb covering the glow tubes, mainly to maintain a similar appearance to bulbous light units. Download high resolution version (502x730, 56 KB)A picture of a Compact fluorescent light bulb taken by Kevin Rector. ...
Download high resolution version (502x730, 56 KB)A picture of a Compact fluorescent light bulb taken by Kevin Rector. ...
A compact fluorescent lamp with an integrated electronic ballast A fluorescent lamp is a type of lamp that uses electricity to excite mercury vapor in argon or neon gas, producing short-wave ultraviolet light. ...
A socket generally designates a cavity or region used for fitting and connecting some specific device. ...
Architect lamps Dark lighting in a concert hall allow laser effects to be visible In the 2005 Classical Spectacular performance, a state of the art lighting system was used to accompany the music Lighting refers to the devices or techniques used for illumination, usually referring to artificial light sources such...
In the law of real property, fixtures are anything that would otherwise be a chattel that have, by reason of incorporation or affixation, become permanently attached to the real property. ...
Look up Misnomer in Wiktionary, the free dictionary This article is being considered for deletion in accordance with Wikipedias deletion policy. ...
The advantages of fluorescent light bulbs over regular incandescent light bulbs are their long life (6,000 to 10,000 hours instead of 750 to 1,000 hours) and energy savings due to their lower power; for example, a 25 watt CFL bulb gives the same amount of light as a 100 watt incandescent bulb, approximately 1700 lumens. However, while reduced, a large amount of the energy is still converted into heat; the emitted visible light in this example is about 11 watts. The incandescent light bulb (archaically known as the electric lamp) uses a glowing wire filament heated to white-hot by electrical resistance, to generate light (a process known as thermal radiation or incandescence). ...
The watt (symbol: W) is the SI derived unit for power. ...
In physics, specifically photometry (optics), the lumen (symbol: lm) is the SI derived unit of luminous flux. ...
Introduced in the U.S. and Canada in the early 1990s, compact fluorescent lights have been steadily increasing in sales for several years, as their quality increases, size and price decrease, color rendition improves, and more people find that the savings in energy costs (even indirectly, by saving on cooling) outweighs the initial cost. Wikiquote has a collection of quotations by or about: United States Wikinews has a related story: United States United States government CIA World Factbook Entry for United States House. ...
// Events and trends The 1990s are generally classified as having moved slightly away from the more conservative 1980s, but keeping the same mind-set. ...
Quality refers to the inherent or distinctive characteristics or properties of a person, object, process or other thing. ...
Note: in the broadest sense, air conditioning can refer to any form of heating, ventilation, and air-conditioning. ...
The most common power ratings of compact fluorescent bulbs are 13 watts (roughly equivalent to a 40 watt incandescent bulb), 15 watts (analogous to a 60 watt incandescent bulb), 20 watts (provides the same light as a 75 watt incandescent bulb) and 25 watts (parallels a 100 watt incandescent). Sometimes intermediate denominations, such as 18 and 23 watts, are also encountered, as are very bright bulbs, some as large as 85 watts. However, CFL bulbs with power ratings of higher than 26 watts have yet to gain a significant following with consumers.
Interestingly, some European manufacturers state that the equivalent of a 60 watt incandescent bulb is a 11 W fluorescent one, instead of 15 W. The corresponding match for a 40 W bulb is then stated to be 9 W.
In addition to different power ratings, compact fluorescent bulbs are also produced in varying shades of color. The color designated "warm white" provides a light extremely similar to that of an incandescent bulb, somewhat yellow in appearance; "soft white" bulbs emit a yellowish-white light, "cool white" bulbs more of a pure white tone, and the light from "daylight" bulbs is slightly bluish-white (in addition to the descriptive names outlined above, color is also denoted using a quantitative color temperature scale; the higher the number, the "cooler" the shade, with warm-white bulbs typically being rated at 2,700 K, soft-white bulbs around 3,500 K, cool-white bulbs at approximately 4,100K, and daylight bulbs as high as 6,400 K — the "K" standing for "kelvin"). Less commonly, compact fluorescent bulbs are manufactured in colors such as red and green. White light is commonly described by its color temperature. ...
The kelvin (symbol: K) is the SI unit of temperature, and is one of the seven SI base units. ...
CFL bulbs also provide a benefit to the environment based on their energy savings over a regular incandescent light bulb. According to the U.S. government's Energy Star website, if every household in the United States replaced just one incandescent bulb with a CFL bulb, it would have an environmental impact equivalent to removing one million cars from the American roads. The validity of this comparison is somewhat disputable, though, and one needs to remember that fluorescent bulbs (including their ballasts) are technologically a bit more complex, and compared to regular light bulbs, the manufacture of fluorescent bulbs requires a bit more resources. ...
Energy Star is a United States government program to promote energy-efficient consumer products. ...
The front page of the English Wikipedia website. ...
A small variety of cars, the most popular kind of automobile. ...
The newest version of the CFL bulb is the RFL, or radiofluorescent type, which uses radio waves instead of ultraviolet light to excite the phosphors. Another variant of the CFL bulb is coated with titanium dioxide, which the manufacturer claims to reduce odors by ionization and oxidation. RFL, or radiofluorescent, which uses radio waves instead of ultraviolet light to excite phosphors. ...
Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating current fed to an antenna. ...
Note: Ultraviolet is also the name of a 1998 UK television miniseries about vampires. ...
A phosphor is a substance that can exhibit the phenomenon of fluorescence (glowing during absorption of radiation of another kind) or phosphorescence (sustained glowing without further stimulus). ...
Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium, chemical formula TiO2. ...
Odor receptors on the antennae of a Luna moth An odor (American English) or odour (Commonwealth English) is the object of perception of the sense of olfaction. ...
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The most fundamental reactions in chemistry are the redox processes. ...
In 2003 the Canadian electrical company BC Hydro distributed thousands of compact fluorescent lightbulbs for free, and currently offers a rebate program for their purchase: http://www.bchydro.com/powersmart/ . Numerous utilities operate similar reduction-of-usage education/advertising programs. BC Hydro is the major provider of electricity in British Columbia. ...
Comparison of electricity cost
A kilowatt-hour is a unit of energy, and in the United States this is the unit in which electricity is purchased. The cost of electricity in the United States ranges from $0.08 to $0.12 per kilowatt-hour. The kilowatt-hour (symbol: kW·h) is a unit for measuring energy. ...
Lightning strikes during a night-time thunderstorm. ...
The following shows how to calculate total cost of of electricity for running an incandesent in comparison with a compact fluorescent.
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Electricity Cost
(for cost of $0.10 per kW-hour) | |
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 | Of course, incandescent lightbulbs only last about 750 hours. It would take at least eleven incandescent bulbs to to last as long as one compact fluorescent. Image File history File links A simple incandescent light bulb. ...
Image File history File links A common compact fluorescent light bulb. ...
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