THG Car Sedan Vehicle LED Fog Lamp Headlight 12V 40A Switch Relay Wiring Loom Harness LED DRL Daytime Running Light Switch Control 12V 40A 4 pins, with on/off switch. Built in blade fuse for more safety New heavy duty wiring suitable for HID and Halogen lights. Great add on item for fog lamp, DRL or HID operation Easy installtion. Just simply plug / connect the wire.