In the manufacturing process of HID bulbs, we use UV-CUT Bulbs(original Philips quartz glass), electrode and Molybdenum from Sweden, pills of the United States, German xenon, 99.99% purity mercury of USA and other raw materials. The HID bulbs have the advantage of high brighter and low consumption.The lifetime of the HID light bulbs is over 3,200hrs. The type of these HID light bulbs include: H1, H3, H4, H4H, H4L, H4H/L, H7, H7C, H7T, H7R, H8, H9, H10, H11, H13, H13L, H13H/L, 9004, 9004L, 9005, 9006, 9007, 9007L, 9004-9007H/L, 880/881, D1C, D1S, D1R, D2C, D2S, D2R, D4C(mercury-free), D4S(mercury-free), D4R(mercury-free), H6(single claw,three claw)