Review on Top-quality Nilight 10014W LED Light Bar Wiring Harness Kit: Waterproof Switch, Heavy Duty, 14AWG, 12V, 5-Pin Rocker, Power Relay, Blade Fuse - 1 Lead, 2 Years Warranty by Kenneth Martin

The belt is good quality and the length was just right for my 2018 Toyota Tacoma. The changes I made involved at least 2 things. 1) I cut off the spade lugs on the end of the cable connecting to the LED panel and replaced them with a waterproof connector. 2) Replaced the included rocker switch with another aftermarket switch designed specifically for my taco as the rocker switch that came with the wiring harness was too large to fit the switch holes on the latest Toyota model. The relay appears to be a quality product. The 3 pin molex connector between the wire harness and the switch was easy to unplug to run the wire harness through the firewall and then plug back into the connector once the wire was routed in the cabin under the dash. I then connected the wires on the side of the molex switch to my new switch, having discarded the original rocker switch. I installed the relay on the driver's side bulkhead using the existing factory ground terminal located right next to the battery. At this point the cable from the relay to the molex connector for the dash switch was long enough. If it was 6 inches shorter it wouldn't be long enough and I would have to move the relay bracket in that direction to improve dash reach. But there wasn't much room to move around if needed, so I recommend they add a foot more cable on the switch side and a foot less on the lightbar side (which had a LOT of extra cable length). The other wire going from the relay to the lightbar is what you'll have plenty of. Since I cut off the pre-installed spade connectors to replace them with a waterproof connector, I had a chance to snip off some of the excess wire as well the light bar in the bumper. The positive and negative harness wire is too large when tested, especially for a typical negative post, but of course it still works if you pinch at least part of the ring. the right size on the cable but it still works so i just left that.