How To Cleanly Wire Jeep Light Bar

Learning how to wire a light bar onto your truck or SUV will aid you savor safer nighttime driving and brighten upwards your off-roading adventures after the lord's day goes down. With their lower ability requirements and more than compact sizes, modern LED low-cal confined are easier to install than older halogen light designs. To easily wire a light bar at dwelling, follow these four basic steps.

1. Use a Relay Over a Simple Switch

Fifty-fifty with the lower power draw of an LED, it's still a better thought to use a relay instead of running full current through a simple switch. Relays are usually rated to handle a much higher load than switches, which means they won't overheat or potentially neglect while being used. They also typically offer a lower voltage drop and can be combined with a single command switch that will allow y'all to turn a number of lights on and off at the same fourth dimension, making for cleaner installation.

2. Choose a Fuse

Putting a fuse betwixt your relay and the battery will also protect your vehicle's electric organisation in case anything unexpected happens while your lights are on. A fuse is cheap, and it will sacrifice itself before whatsoever power surges brand their way to your lights or spread through the residual of your truck'due south wiring. Make sure you lot cull a fuse that offers the right amp rating for your lights' power draw — if it's rated besides loftier, it won't trip when needed.

three. Make Sure Your Grounds Are Good

Y'all'll most likely be wiring your LED low-cal bar relay'due south ability lead direct to the battery, but you won't necessarily utilize the same battery'due south negative terminal every bit your ground. You tin can ground your wiring to the vehicle's chassis, as long as information technology offers a clean connection betwixt your circuit and blank metal. Yous'll want to test that footing with a elementary multimeter before making it permanent to ensure a strong contact.

4. Decide on an Auxiliary Switch or Factory

I more than important aspect of how to wire a light bar is the kind of switch yous use. You can wire an aftermarket switch inside the vehicle that will trigger your relay. For a cleaner installation, you lot can besides tap into the wiring harness for your vehicle'southward high-beam headlights, and send ability to the relay one time those are activated. This is helpful for two reasons: If the high beams are on, it'south dark enough to crave your low-cal bar, and on a modern vehicle, this will foreclose y'all from accidentally leaving your LEDs on with the vehicle's ignition and lighting turned off, saving your battery from being drained.

By post-obit these steps, y'all'll transform the safety and enjoyability of your nighttime explorations, no affair how far they might take y'all from civilization's glow.

Check out all the lighting products available on NAPA Online or trust ane of our 17,000 NAPA AutoCare locations for routine maintenance and repairs. For more data on light bars, chat with a knowledgeable skilful at your local NAPA Machine PARTS store.

Photograph courtesy of Creative Eatables.

Benjamin Hunting View All

Having been bitten by the car bug at a young age, I spent my determinative years surrounded by Studebakers at motorcar shows beyond Quebec and the northeastern U.s.a.. Over ten years of racing, restoring, and obsessing over automobiles lead me to balance scientific discipline writing and automotive journalism full fourth dimension. I currently contribute as an editor to several online and print automotive publications, and I also write and consult for the pharmaceutical and medical device industry.