Halogen lamp (English: halogen lamp), abbreviated as halogen bulb or halogen lamp, also known as tungsten halogen bulb, quartz bulb, is a variant of incandescent lamp.
The principle is to inject halogen gas such as iodine or bromine into the bulb. Under high temperature, the sublimated tungsten wire reacts with the halogen. The cooled tungsten will re-solidify on the tungsten wire to form a balanced cycle to avoid premature breakage of the tungsten wire. . Therefore, halogen bulbs last longer than incandescent bulbs.
The power supply voltage of halogen lamps is usually divided into two types: AC 220V, DC 12V and 24V.
