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High Intensity Discharge Lamp (HID)
These lamps are high pressure discharge lamps, characterized by high brightness, short arc shaped discharge tubes, usually with a glass or quartz cover of some form on the outside of the discharge tube. The shell is transparent or frosted, or coated with a fluorescent light coating. Pink to increase red radiation. Divided into high pressure mercury lamp (HPMV), high pressure sodium lamp (HPS), metal halide lamp (M-H)
induction light
Electrodeless gas discharge lamps that have just appeared. The required energy is coupled to the discharge through the high-frequency field, and the secondary coil of the transformer can generate an efficient discharge. In terms of shape, induction lamps are another form of CFLs, but the high voltage part may be different. These lamps are not limited to long tubular shapes (such as fluorescent tubes), but can also emit light instantly. The operating frequency is in the range of a few megahertz and requires special electronic circuitry to drive and control the lamp ignition.
electroluminescence lighting
Including various types of light-emitting panels and light-emitting diodes, LED is the latest optoelectronic lighting technology, which has a wide range of applications and integrates multiple advantages of previous optoelectronic technologies.
