Halogen Tungsten Lamp

- Sep 28, 2019-

Halogen tungsten lamp is a gas filled gas containing some halogen elements or halogenated incandescent lamp. In the ordinary incandescent lamp, the high temperature of the filament causes the evaporation of tungsten, and the evaporated tungsten precipitates on the glass shell, resulting in the phenomenon that the bulb glass shell becomes black. In 1959, halogen tungsten lamp was invented, using the principle of halogen tungsten cycle to eliminate this black phenomenon.