LED Lights with 3 wires will be a multi-function light. They can (most times) be used in whatever configuration is right for your application. For example, running and brake, running and blinker or brake and blinker. These LED’s will usually have a black, red and white wire.

How do I wire a LED light bar without a relay?

How To Wire LED Light Bar Without Relay

1. 1: First, find a place to mount your light bar.
2. 2: Next, take a piece of wire and wrap it around the screw on the back of your LED light bar with one end sticking out far enough so that it can be connected when needed later on but still hidden at most times if possible.

Whats the yellow wire on a light bar?

Registered. If you want to have your light bar to turn off when the key is turned off, wire the “hot” into the middle yellow wire. If you like to “light ’em up whenever and wherever you want”…….

How do you wire a light bar without a relay?

How do I keep my light bar from draining my battery?

Follow these 8 tips on how to keep a light bar from draining your battery:

1. Connect your light bar directly to the vehicle battery or another DC voltage source.
2. Use a wire gauge that matches or exceeds the maximum current of your LED light bar.
3. Fuse power wires to the expected current draw, not the wire size.

Is a relay the same as a fuse?

Fuses are included on all your car’s various electrical circuits to protect components from surges of electricity. Relays are remote switches that open or close an electrical circuit. For example, only a little electricity is needed for the headlight switch that turns your headlights on and off.

Do you need a fuse for a light bar?

Premium Member. You are correct, the light bar will draw 5.4 amps at 13.8 vdc or 6 amps at 12 vdc. According to the switch specs, there is no integral fuse.