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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.
If timed correctly relative to the phase of the supply AC, this causes the ballast to induce a voltage over the tube high enough to initiate the starting arc. [36] These systems are standard equipment in 200–240 V countries (and in the United States lamps up to about 30 watts). A preheat fluorescent lamp "starter" (automatic starting switch)
Batteries Plus (stylized as Batteries+, formerly Batteries Plus Bulbs stylized as Batteries+Bulbs) is an American retail chain of 600+ franchise outlets [2] founded in 1988 that sells and recycles [3] [4] [5] batteries of varying size and voltage that provide power to operate consumer electronics, watches, cell phones, digital cameras, automobiles and other devices that require DC power. [6]
Gerard Philips (1858–1942), founder. The Philips Company was founded in 1891, by Dutch entrepreneur Gerard Philips and his father Frederik Philips. Frederik, a banker based in Zaltbommel, financed the purchase and setup of an empty factory building in Eindhoven, where the company started the production of carbon-filament lamps and other electro-technical products in 1892.
Light fixtures may also have other features, such as reflectors for directing the light, an aperture (with or without a lens), an outer shell or housing for lamp alignment and protection, an electrical ballast or power supply, and a shade to diffuse the light or direct it towards a workspace (e.g., a desk lamp).
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Available in numerous spot and flood beam spreads. Like all light bulbs, the number represents the diameter of the bulb in 1 ⁄ 8 of an inch. Therefore, a PAR 16 is 51 mm (2 in) in diameter, a PAR 20 is 64 mm (2.5 in) in diameter, PAR 30 is 95 mm (3.75 in) and a PAR 38 is 121 mm (4.75 in) in diameter. A package of four 60-watt light bulbs
The phosphor typically used for a near 368 to 371 nanometer emission peak is either europium-doped strontium fluoride (SrB 2 F 8: Eu 2+) or europium-doped strontium borate (Sr 3 B 2 O 6: Eu 2+) while the phosphor used to produce a peak around 350 to 353 nanometres is lead-doped barium silicate (BaSi 2 O 5: Pb +). "Blacklight blue" lamps peak at ...
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