HID light is stand for high intensity discharge. Its principle is to utilize anode and negative electricity to stimulate the xenon with the rare metal (XENON )to carry on the chemical reaction, then give out 6000K CT light(colour temperature) that too difficult to do it for the halogen light. And the light at 6000K is close to the sunlight at noon and comfortable to our eyes. Besides, the more time it use, more active of xenon molecule become, so the light will be more and more brighter than before. In an HID Xenon lighting system for automobile, the voltage between the two electrodes rises firstly from 12V to 23000V and keeps stable at 80V by using the Xenon HID ballasts system. Due to the ultra high voltage, the Xenon gas ionizes and a super-bright beam is produced.