The Baja Designs 640119 is a complete wiring harness for XL (Pro and Sport) LED auxiliary lights, and the manufacturer also lists it for OnX6+ light bars. It is a universal harness built for up to two lights, so it bundles the on/off switch, relay, fuse, and sheathing in one kit for a bumper, roof, or A-pillar setup. Enthusiasts searching for an XL Pro wiring harness with dim mode, a 2-light max auxiliary light harness, or a universal XL Sport harness for off-road lighting will find this kit matches those needs.
Compared with piecing together a generic relay kit, this harness keeps the wiring path consistent. The manufacturer describes heavy-duty wire gauge and a 100-inch run from the battery ring terminals to the weatherproof connector, which is long enough to reach a front bumper or roof mount without splicing extra lead. A dim-mode button lets you step the light down for oncoming traffic or close trail work without adding a second switch, and the included splitter is the manufacturer's method for powering a second XL from one harness. Compared with cheaper loose-wire kits, you get the relay and fuse already sized to the lights, which reduces guesswork and the risk of undersized wire.
Yes. The manufacturer includes a splitter and instructs installers to use it when powering two XL lights. If you are running only one light, the splitter can be set aside.
The manufacturer's instructions call for mounting the relay on an existing bolt about 1.5 feet from the vehicle battery.
No. The manufacturer lists mounting hardware as not included, so light brackets must be sourced separately.
The manufacturer's harness instructions list a 10mm or 1/2-inch socket for the battery terminals and 1/2-inch and 3/4-inch drill bits for the dash switch. Start by placing the vehicle in park, turning it off, and disconnecting the battery ground. Route the light plug lead through the engine bay to the light, mount the relay as noted in the FAQ, and drill the switch holes in the dash. Before removing the switch terminals, photograph the existing switch wire orientation so you can reconnect it correctly. Pass the wires through the firewall and dash, reattach the switch, connect the positive and negative battery leads, and reconnect the ground. Tie all wiring away from heat, sharp edges, and rotating parts, as the manufacturer specifically advises.
