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60 W incandescent light bulb with energy efficiency class E Equivalent 42 W halogen incandescent light bulb with efficiency class C Compact fluorescent lamp LED lamp circa 2021. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy-efficient ...
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor, to produce ultraviolet and make a phosphor coating in the lamp glow.
New lighting systems have not used magnetic ballasts since the turn of the century, however some older installations still remain. Fluorescent lamps with magnetic ballasts flicker at a normally unnoticeable frequency of 100 or 120 Hz (twice of the utility frequency; the lamp is lit on both the positive and negative half-wave of a cycle).
These lamps are used for fluorescence effects where less visible light is ideal. 09 N/A Sun-tanning lamps: These lamps produce wide or narrow band UV-B radiation 10 BL Black-Light lamps: Black light lamps give off long-wave UV-A radiation of around 350-400 nm. They are often used to attract insects to traps.
It also offers automated light systems. [1] Its line of next-generation LED lighting is called NXLED which was launched in 2012. [2] As of 2007, 95 percent of Akari's products are sourced from mainland China while the rest are from Thailand and Taiwan. Akari claimed to be the third most popular lighting system in the Philippines after Philips ...
Invention of the world's first compact metal halide lamp in the popular MR16 format, as an energy efficient alternative to the halogen MR16 lamp for commercial lighting. [14] 2007 — MiniLynx Fast Start; Introduction of the first compact fluorescent lamps to feature almost instant light at switch-on without reducing lamp lifetime. 2008 ...
Circular and U-shaped lamps were devised to reduce the length of fluorescent light fixtures. The first fluorescent light bulb and fixture were displayed to the general public at the 1939 New York World's Fair. The spiral CFL was invented in 1976 by Edward E. Hammer, an engineer with General Electric, [7] in response to the 1973 oil crisis. [8]
Artcraft Fluorescent Lighting Corporation [2] was an American mass manufacturer of fluorescent lighting fixtures from the time of the public introduction of the fluorescent lamp at the 1939 World's Fair. Artcraft was first to announce and start mass manufacturing of a liner showcase striplight fixture and slimline ballast in 1946. [3] [4]