HID Xenon lights are designed to be at least 3 times brigther and last 10 times longer than halogen lights. HID produces supreme light output providing drivers with greater visibility, therefore promotes increased comfort and safer night time driving condition. HID also consumes 35% less power and generates less heat during operation. Kit includes 2 ballasts, 2 ignitors, 1 H9 and 1 H7 bulb.