Rock Light Wiring 101: The Harness, the Remote, and What Install Involves
Rock lights are one of the simpler electrical jobs you can do on a truck, but only if you plan the run before you zip-tie anything. Here is the whole job, start to finish.
The harness does the thinking
Our wiring harness with wireless remote runs every rock light off one switch: rock lights plug into the harness leads, the harness fuses to the battery, and the remote handles on and off. No app, no pairing, nothing to update, wired control on purpose, because a phone should not be a failure point for your lighting.
Plan the run before you mount anything
- Lay the rock lights out first. Set them where you think you want them and look at the spread before anything is fixed. Wheel wells and frame rails are the classic spots; sets of eight cover the rails, twelve to twenty light the full underbody.
- Route away from heat and pinch points. Exhaust, steering components and suspension travel are the three things that eat cables. Follow factory looms where you can.
- Leave slack at the frame-to-body transitions. The body moves on its mounts; a taut wire there fails eventually.
- Fuse at the battery. The harness carries its own protection, keep it, and connect the battery terminals last.
How long does it take?
For a set of four to eight rock lights on a pickup, most owners are done in an afternoon. Our step-by-step guides, rock light installation and the general install hub, walk the whole process with photos.
Do it right and the warranty rides along
The rock lights themselves are IP68, fully submersible, and the limited lifetime warranty applies when the installation instructions are followed and the warranty is registered, so the guide is worth the read before the wrenches come out.
Starting from zero? A set of rock lights plus the harness is the whole shopping list. Shipping is free on every US order. Current lead times are posted here.
If something is already wired and not lighting, work through what to check when a truck light stops working.
Frequently asked questions
How do you wire rock lights?
Our rock lights come with 2-pin wire leads and have to be hardwired, so you can run them however you want. The clean way is to extend the leads to our wiring harness, which comes with a relay, fuse, switch, and wireless remote, so the whole set powers off one point.
Do rock lights need a wiring harness?
Not strictly, since the 2-pin leads can be hardwired to a switched 12V source yourself. But the harness is the easy path: it comes with a relay, fuse, and switch, plus a wireless remote, and turns a set of hardwired leads into one clean circuit.
How long does it take to wire rock lights?
Most owners are done in an afternoon. The connections are quick; the time goes into extending the leads and routing the wire cleanly to the harness along the frame.
Can you control rock lights without an app?
Yes. Our harness comes with both a physical switch and a wireless remote, no phone or pairing. Use whichever you like to turn the set on and off.