Xenon lamp and halogen lamp's main difference is that the former by gas ionization, the latter by heating tungsten light. Although xenon lamp light and halogen tungsten arc length diameter, but the luminous efficiency and brightness increased three times. Due to no filament, no the defects of the traditional lamp brittle broken life also increased nearly 10 times. According to the test, a 35 watt xenon lamp light source can produce 55 watt halogen lamp 3 times of luminous flux, using time and car life. Installation of xenon lamp, therefore, not only can reduce power consumption, also improve the performance of the vehicle, corresponding every one more prosperous urban environmental protection, energy conservation contribution, xenon lamp to replace halogen lamp will be the main stream of the development of automobile.