Upfitter switch wiring questoin

[DMac]

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]

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.

 

[OldCowboy]

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.

Yeah, I would guess that light bar has a relay. Must be high power.

 

[Modman]

Yeah, I would guess that light bar has a relay. Must be high power.

Agree, must be higher draw than the upfitter switch...

 

[Whyte Rhyno]

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]

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.