iJDMTOY Xenon HID Conversion Kit Dual-Relay Wiring Harness for H4 90036 Hi/Lo Up To 4 Lamps 2 pieces Relay on the same harness This specially designed double-relay harness will allow you to install 4 pieces HID lamps using a single relay setup For both 35W or 55W HID system Extend the lifespan for HID Conversion kit Solve some vehicles' HID not working issue