How do you wire a LED light bar?

How do you wire a LED light bar?

How to Wire a Light Bar in 4 Easy Steps

1. Use a Relay Over a Simple Switch. Even with the lower power draw of an LED, it’s still a better idea to use a relay instead of running full current through a simple switch.
2. Choose a Fuse.
3. Make Sure Your Grounds Are Good.
4. Decide on an Auxiliary Switch or Factory.

Do I need a relay for LED light bar?

So in short if you do not properly wire the light bar to a battery and use a correct amperage switch which will keep the light bar on it’s own independent circuit a relay is unnecessary. However if you tap into the high beams or another lower voltage switch then you will need a relay to avoid an electrical fire.

What are the 3 wires on LED light bar?

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.

What size wire should I use for LED light bar?

Most people would likely recommend using a solid core 18-gauge wire for your LED lights. The cost difference between this wire size and a much smaller cable is negligible, and 18-gauge is about as big as you can go if you would like your wires to fit into most holders or terminals.

How do I connect 4 LED lights to one switch?

You can use two ways to make your switch control multiple lights. The most common way is to daisy-chain the light fixtures through connecting them with each other and hooking the first fixture to the switch.

Does a light bar need a fuse?

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.

What is the blue wire for on my LED lights?

The blue wire to the brake light is for increasing safety. If you hook this wire, all LED strips will turn RED when you brake.

Can you wire LED light bar directly to battery?

In general, if you can connect the LED bar directly to the cables to the lights, you can also wire it directly to the battery. But a car battery has enough power to easily melt a wrench touching both terminals. If there’s a short circuit in the LED bar or somewhere in the cable, this can easily start a fire.

Is 14-gauge wire good for LED lights?

Most household lighting fixture, as well as many appliances, requires about 12- or 14-gauge wire.