The halogen lamp began to be applied to the car body in the 1970s. Its light-emitting principle is very similar to that of ordinary incandescent lamps. The tungsten filament of halogen lamps has a higher melting point than ordinary incandescent lamps, so the brightness of halogen lamps is greater than that of incandescent lamps.
Xenon bulbs have three times higher light intensity than ordinary halogen bulbs, but consume only two-thirds of the energy; xenon bulbs use almost the same light color as daylight, creating better visual conditions for drivers. The xenon lamp makes the light range wider and the light intensity is greater, which greatly improves the safety and comfort of driving.
Many cars use traditional halogen bulbs, and more than 60% of traffic accidents are concentrated at night or when the weather is bad. The lighting effect of halogen bulbs at night or when the weather is bad will be greatly reduced. At this time, driving The vision of the person is severely affected, fatigue, distraction, etc. are prone to occur, and the probability of a traffic accident doubles. At this time, it is very urgent to improve the performance of lighting. When ordinary headlights cannot meet our needs, we will seek lighting systems with higher brightness and longer life. Therefore, the so-called ultra-white light and ultra-high light on the market And other products also came into being, and xenon headlights are one of them.
In 1962, HELLA took the lead in introducing halogen car lights.
In 1965, HELLA H1 series halogen lamps were born; H4 series dual filament halogen lamps were first applied to Mercedes-Benz 350 SL (R107) in 1971.