This relay harness is directly compatible with the socket and by using the the extension power cord comes together the HID bulb. It also can solves the problem that some vehicles' HID not working issue.Features:Installation easy.Protects your HID system by drawing stable current directly from your battery.No more flickering due to low electrical current.40 Amp relay and 30 Amp fuse.Extend the lifespan for HID Conversion kit.High Quality materials for maximum durability and performance.For both driver side and passenger side HID headlights.Specifications: Material: PlasticColor: Black and Red Weight: 160g / 5.6ozPackaging:1 * Relay Wire