How To Wire Up Led Light Bar With Relay

If you have no wiring harness use a relay if your light bar draws over 5 amps.

How to wire up led light bar with relay.

Step 11 reconnecting the. How to wire your led light bar using a relay. How to wire your light using a relay the relay will have 4 points on it marked 30 87 85 and 86. Kind of cryptic isn t it.

The single plug must be connected to the relay and the ring terminal on this end needs to be connected to an earth. This wiring kit will work with any led light product such as the ford f 150 led light bar and makes them easy and safe to work with. For this guide we will be tapping this led light bar to achieve superior lighting in dark off roading situations. This is your guide on how to install a universal relay harness wiring set with an on off switch.

When directly switching a light bar use a switch with a minimum 10a rating. The relay will have 4 prongs on it marked 30 87 85 and 86. If you are wiring up spot lights connect a plug to each light. Wiring a led light bar.

The second plug can be taped up out of the way or you could use this wire for an additional light bar. By implementing all the steps mentioned in this guide properly you would be able to wire a light bar without a relay. If you do not install a relay and use a switch you could end up overheating the switch melting the wires and reducing the current that is getting to your lights making them less bright. If you are wanting to wire your light bar in such a way that is controlled with a separate switch on your dashboard all you have to do is leave the wiring harness set up the way it is cut the wire coming to the 30 prong and wire it either to your high beam led or backup light wire.

I wired my 50 led light bar up with the wiring harness supplied with and the switch also but the red light on the switch stays on when off position it lights up green when on. For anything above 30w we recommend installing a relay.