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Fluorescent-lamp formats. Fluorescent lamps in various embodiments. Since their introduction as a commercial product in 1939, many different types of fluorescent lamp have been introduced. Systematic nomenclature identifies mass-market lamps as to overall shape, power rating, length, color, and other electrical and illuminating characteristics.
Fluorescent lamp tubes are often straight and range in length from about 100 millimeters (3.9 in) for miniature lamps, to 2.43 meters (8.0 ft) for high-output lamps. Some lamps have a circular tube, used for table lamps or other places where a more compact light source is desired.
The main difference between daylight and soft white bulbs is the color temperature, which is measured in Kelvins. According to Westinghouse Lighting, the lower the Kelvin, the more yellow the bulb ...
Several countries have specialised recycling or disposal systems for fluorescent bulbs. According to the U.S. Environmental Protection Agency (EPA), the amount of mercury contained in a compact fluorescent lamp (about 4–5 mg [20]) is approximately 1% of the amount found in a single dental amalgam filling or old-style glass thermometer. [21]
Daylight bulbs serve the same purpose, just amped up a bit more, so they're best for spaces where you need extra-bright and clear light for seeing details. However, it's all up to personal ...
A compact fluorescent lamp ( CFL ), also called compact fluorescent light, energy-saving light and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs. The lamps use a tube that is curved or folded to fit into the space of an ...
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