Upfitter switch wiring questoin

DMac

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So I was watching a video on the F150 Leds webpage and the guy is hooking up a lightbr. He runs the power wire to the battery and has another wire to the upfitter switch.

I thought the upfitter would supply direct power. Do you need to run powerr to the battery or can you run it directly to the upfitter switch wire?

Thanks.
 

Dissident

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Everything I've run has power coming from the up fitter (other than my Viair which has a relay). Upffiter on one side ground on the other.
 

Whyte Rhyno

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depends on the amp draw of the light bar. switch 1-4: 20A, switch 5-6: 40A
Most quality and modern light bars like BD and Rigid draw around 10-15 from what I've seen
 

ccw

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Yep. To expand on things, the upfitter switches can power things directly, but there’s a limit. Switches 1-4 can supply up to 25 amps each, 5 and 6 up to 40 amps each.

If the load you’re trying to control exceeds what the switch can provide directly then you need to introduce a relay that the upfitter switch controls and get your own power directly from the battery.
 
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