Wiring Harness for off road led lights is a perfect accessory for off road vehicles, working vehicles and any automobile that could use a relay to power specific equipment. This wiring harness is up to 10 feet and with 2 leads can hook up 2 light fixtures,it is universal fit for any 7" 10" 12" 20" 30" 40" light bars,espcially good for light bar within 10-400w.