The basic principle of halogen bulb and incandescent lamp is the same, is to give the filament of the tungsten filament conduction through sufficient current, so that the filament is heated to the incandescent light.
At present, most of the cars on the headlights are halogen bulbs.
Its advantages:
1, Simple structure, low cost.
2, Brightness is easy to control and adjust.
3, Good color rendering, strong penetration.
4, Long service life, high temperature, high luminous efficiency than incandescent light bulb.
