The working principle of the halogen infrared heating lamp is to use the halogen tungsten cycle principle. Under high temperature conditions, the tungsten evaporated from the tungsten filament reacts with the halogen tungsten in the tube wall area to form a volatile halogen tungsten compound. Due to the high temperature of the tube wall, the halogen tungsten compound is in a gaseous state. When the halogen tungsten compound diffuses to the hotter area around the filament, it is differentiated into halogen and tungsten. The released tungsten part returns to the filament, while the halogen continues to participate in the cycle process. In this way, the tungsten on the filament will not gradually evaporate, nor will it turn black due to the deposition of tungsten on the tube wall, and its life will be extended.At the same time, the halogen infrared heating lamp also uses the characteristics of infrared radiation to convert electrical energy into thermal energy and transfer heat in the form of radiation, thereby achieving the purpose of heating.