How to wire your light using a relay the relay will have 4 points on it marked 30 87 85 and 86. These instructions apply to any car but for the sake of this guide we will be using the ford f 250 as a reference car to wire an led light bar.
Details About Universal Wiring Relay Harness Switch For 36w 72w Led Light Bars
Relay wiring diagram for light bar. Assortment of led light bar wiring diagram. A wiring diagram usually provides information concerning the relative position as well as arrangement of gadgets and terminals on the gadgets to aid in structure or servicing the gadget. How to wire your led light bar with a relay switch. 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. I have a light bar that came with a wiring harness and switch. A wiring diagram is a simplified standard photographic representation of an electric circuit.
On the back of the rocker switch there are 5 blades. When directly switching a light bar use a switch with a minimum 10a rating. If you are using a wiring harness and switch these four prongs may be plugged in already however if you are wanting use a different electrical current to activate your light bar such as. For anything above 30w we recommend installing a relay. Before we get started take note of this relay diagram on how to wire up the switch to your led light. I go though every step so after watching this you will know how.
To begin with look at your relay switch and notice the four prongs on it marked 30 8785 and 86. A wiring diagram is a streamlined standard photographic depiction of an electric circuit. Two ground two hot and a 5th blade that goes to the relay or led. It shows the elements of the circuit as streamlined forms and also the power and signal links between the devices. 86 chassis ground 85 12v trigger from switch 30 14 gauge 12 from battery minimum gauge is 14 for two lights 87 14 gauge out to red wire on lights maximum 2 lights per relay pack duplicate relay packs can be wired for additional lights. The diagram below shows the bottom side of a standard 12vdc automotive relay.
In this episode of project night light i show you how to wire an led light bar properly using a relay. Each relay should be wired as follows. If you have no wiring harness use a relay if your light bar draws over 5 amps. How to install a light bar. Oct 1 2018 led light bar relay wire up at wiring diagram for 12v led lights in. Be sure the relay power capacity exceeds the amperage of your light bars maximum current draw.
This is a general installation guide on how to wire a relay harness and switch kit. It reveals the elements of the circuit as streamlined forms and also the power and also signal connections between the tools. I want to remove the factory switch as i am running multiple light bars and use a third party switch panel with 6 rocker switches run in a series. Collection of wiring diagram for led light bar.
Gallery of Relay Wiring Diagram For Light Bar
