High-intensity discharge (HID) lamp

What is High-intensity discharge (HID) lamp?

High-intensity discharge (HID) lamp meaning A lamp that produces light by passing electricity through gas, which causes the gas to glow. Examples of HID lamps are mercury vapor lamps, metal halide lamps, and high-pressure sodium lamps. HID lamps have extremely long life and emit far more lumens per fixture than do fluorescent lights.


reference: Glossary – U.S. Energy Information Administration (EIA)

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