quartz-halogen lamp

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Definition of quartz-halogen lamp in English English dictionary

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quartz-halogen lamp

A quartz halogen lamp also called tungsten-halogen lamp, the halogen lamp or the quartz-iodine lamp is an incandescent lamp wherein a tungsten filament is sealed into a small transparent envelope filled with a halogen gas such as iodine or bromine. The halogen lamp can operate its filament at a higher temperature than in a standard vacuum or inert-gas filled lamp, without loss of operating life. This gives it a slightly higher efficiency than standard incandescent lamps

quartz halogen lamp

an incandescent light bulb in which the envelope is made of quartz instead of glass, and the filament is surrounded by an atmosphere of a halogen gas, usually iodine