... lights overthrough Edison's light principle for tungsten filament. That is, the quartz lamp is filled ... inert gas - Xenon xenon gas to replace traditional filament, in the two electrodes there are mercury and ... Conversion Kit is designed for motorcycles using a single H4 bulb for both high and low beam ... good quality will win your trust, Motorcycle bulb type:single claw. double claws, three claws , H4,H7 ...