Car LED DRL Controller Auto Daytime Running Light Relay Harness Dimmer On/Off Fog Light Controller Start Power 13V

Wiring instruction:
The red and black wire (end with a fuse) connect directly to the car battery + & -.
The red wire goes to the LED daytime running lights positive pole, the black wire of the output end goes to the daytime running lights negative pole.
The yellow wire is to connect to the headlights (or dashboard lights) when the headlights or dashboard lights are turned on, the LED daytime running lights will halve/turn off their brightness.

Package Included:
1 daytime running lights controller