HID lamp is high intensity discharge lamp. Luminescence theory of the HID filled the HID luminous pipe with xe and metal halide. Blazing with pressure. the pipe will produce a steady arc. discharge the electricity and illuminate. HID consuming power is 35W, which is half of the consumption of the tungsten lamp (65W), so it saves the fuel. The luminous flux of HID is the triple of the tungsten light. Which can the 3000 lumen. It is brighter than the tungsten lamp. The life span of HID is about 2500 hours. Which us ten times of that of the tungsten lamp. At present, we are one of leading manufacturer of halogen lamp and HID xenon lamp in the china. Nowadays, there are five kinds of color temperature for you choice, 4,700K,6,000k,8,000,10,000K,12,000K..MoreOver, when you buy our factory HID lamp, you could enjoy one-year guarantee with normal use. So, please don?t worry about the quality. If any lamp and ballast does not work period of one-year, you could replace it from our factory. the main production series include H series and 900 series. if you are interested in any series or relate to this field, please contact us to get the more details of our pruducts. We guarantee that we will offer the best quality and most competitive price to you .