Lumen LED light bar wiring help

Gran papa

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Aug 22, 2025
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I added a Lumen LED light bar to my brush guard, but the harness uses a basic switch. How do I rewire it for a rocker switch, and what connectors are needed? Also, where's the best way to run wires into the dash, and what size bolt secures the relay to the frame?
 
The standard switch of these should have 3 wires, so replacing it for a rocker one is fairly simple. The terminals on the rocker switch should be labeled with power, accessory and ground, which are input, output and ground from the standard switch in the same order.
 
@Shootingcomet is right and that's how it should be, but in the off chance that you're not sure or something feels off, grab a multimeter. It's your best friend whenever you're doing some kind of electrical work.
 
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