DRL Controller Auto Car LED Daytime Running Lights Controller Relay Harness Dimmer On/Off 12-18V Fog Light Controller
Wiring Instruction:<br> 1. The red and black wire (the end with a fuse) are connected directly to the car battery + & - .<br> 2. The red wire goes to positive pole of the LED daytime running lights, the black wire of the output end is to goes to the negative pole of the daytime running lights.<br> 3. The white wire is to connect to the headlights (or dashboard lights), when headlights or dashboard lights are turned on, the brightness of the LED daytime running lights will be halved.<br>