7. Press halogen tungsten headlight. After developing the halogen tungsten light bulb in the late 1950s, it was quickly adopted by headlight, which greatly improved the asymmetric near-light headlight system. The halogen tungsten lamps used in headlights are mainly H3 of single filament and H4 of double filament. Its luminous efficiency can reach 221m/w ~ 251 m/w, about 50% higher than the general incandescent bulb, bulb life also greatly improved.
This paper is arranged by Danyang Winite auto parts Co., LTD