Wire LED into 2012 F350

Grizzly4323 · Nov 9, 2015

Looking for advice on how to wire my LED light bar, and there are no upfitter switches. Would like an on/off switch, but would control the light though the hi beams and there is no harness for the light. Been told it can be done.

Most likely need relays and that's where the issue lies as far as me doing the wiring! I have lots of wire, good heat shrink connectors, dielectric grease and loom but have no experience using relays.

Some good help would be appreciated. Need to get this thing workin!!

Thanks!

Highfly · Nov 9, 2015

Installing relays is super easy.

Here is a U Tube clip that explains it pretty well.

So for the switch he says hook up to one side of the coil and ground the other side. You will need a power source from somewhere to go to the switch preferably switched with the ignition so you can't leave the lights on, then to the one side of the coil.

https://www.youtube.com/watch?v=Tw9QkkT2ptU

Highfly · Nov 9, 2015

If you want to work with high beams you simply take power from the high beam wire, go through your switch into coil (ground the other side). Then hook up the power to the center prong. this power can come straight from the battery (Make sure you fuse it). and then use one of the two prongs in the center to power the lights. Easy Peasy.

Highfly · Nov 9, 2015

Here you go. Add a switch in the orange wire from the high beam power wire, this is exactly what you want. Note this is a 4 prong relay.

Edit, your high beam power wire may or may not be Yellow.

Grizzly4323 · Nov 9, 2015

Perfect!! Thanks

snapon · Nov 10, 2015

You may not want to hook up the lights to the high beam because the high beams are also the day time running lights

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kakwa climber · Nov 10, 2015

snapon said:
You may not want to hook up the lights to the high beam because the high beams are also the day time running lights

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I assume he will still have a switch so he can turn it on and off separately .

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Grizzly4323 · Nov 10, 2015

snapon said:
You may not want to hook up the lights to the high beam because the high beams are also the day time running lights

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There will be a switch on the high beam wire so the LED will be off when not needed. So shouldn't be a problem.

X-Treme · Nov 10, 2015

240Turbo said:
There will be a switch on the high beam wire so the LED will be off when not needed. So shouldn't be a problem.

If you're gonna have one switch, why the need for two? Why not just run it off the switch OR the high beams?

kakwa climber · Nov 10, 2015

It's nice to have them on hi/low so if you meet someone unexpectedly you can just hit the dimmer switch.

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Highfly · Nov 11, 2015

I agree, having it wired through the hi beam is the way to go.

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Highfly · Nov 11, 2015

And also the "Legal" way to have them wired.

Auxiliary driving lamps on a motor vehicle must be used only at the same time the high beams on the headlamps are used.

TRAFFIC SAFETY ACTVEHICLE EQUIPMENT REGULATION
http://www.qp.alberta.ca/documents/Regs/2009_122.pdf

Stompin Tom · Nov 11, 2015

Highfly said:
And also the "Legal" way to have them wired.

Auxiliary driving lamps on a motor vehicle must be used only at the same time the high beams on the headlamps are used.

TRAFFIC SAFETY ACTVEHICLE EQUIPMENT REGULATION
http://www.qp.alberta.ca/documents/Regs/2009_122.pdf

I was about to post something similar, I am not 100% sure on small vehicles but by law, if you have DOT approved driving lights on a commercial vehicle they must be controlled by your high beam switch or they must be covered, DOT approved or not.

Stompin Tom · Nov 11, 2015

X-Treme said:
If you're gonna have a switch anyway, why wire it into the high beam circuit? Just run it off the switch period.

do you prefer to blind oncoming traffic with your high beams or with your light bar? Which do you switch first when you meet somebody in a corner?

X-Treme · Nov 11, 2015

Stompin Tom said:
do you prefer to blind oncoming traffic with your high beams or with your light bar? Which do you switch first when you meet somebody in a corner?

Thanks for the lecture, but my light bar is wired into my high beam switch, and they get switched off as soon as there's a hint of oncoming light. But, no other switch involved. I was simply asking what the point is of having 2 switches. You know what happens when you assume things, eh? Go back to bed, ya grumpy old f$*k.

Stompin Tom · Nov 11, 2015

X-Treme said:
Thanks for the lecture, but my light bar is wired into my high beam switch, and they get switched off as soon as there's a hint of oncoming light. But, no other switch involved. I was simply asking what the point is of having 2 switches. You know what happens when you assume things, eh? Go back to bed, ya grumpy old f$*k.

"If you're gonna have a switch anyway, why wire it into the high beam circuit? Just run it off the switch period. "

What part of that says you have yours wired properly? Sounds more like your a douche bag who takes short cuts at other peoples expense that somebody how does things the right way. All assumptions based on what you wrote.

X-Treme · Nov 11, 2015

Stompin Tom said:
"If you're gonna have a switch anyway, why wire it into the high beam circuit? Just run it off the switch period. "

What part of that says you have yours wired properly? Sounds more like your a douche bag who takes short cuts at other peoples expense that somebody how does things the right way. All assumptions based on what you wrote.

Ok chief. I'll re-word it for anyone who makes assumptions.

What is the need for redundancy?

Grizzly4323 · Nov 11, 2015

Another good piece of info having the LED light on hi beam switch.
I want a secondary switch because there are times where a guy can run the hi beams but not the LED. Hence the need for secondary switch. I just want the option, also can hit the LED on and off quick through the hi beams. I don't wait till I see the vehicle to hit the dim switch, they are off at the first sign of oncoming light. LED or not!! So comes down to personal preference I guess.. Hope that answers your question. Now lets move on!!

X-Treme · Nov 11, 2015

240Turbo said:
On and off quick through the hi beams!!

Exactly. On and off quick WITH the high beams. So why add another switch is all I wanna know? If you're in an area where you can run your high beams, why would you ever NOT want your LED bar on?

Stompin Tom · Nov 11, 2015

X-Treme said:
Exactly. On and off quick WITH the high beams. So why add another switch is all I wanna know? If you're in an area where you can run your high beams, why would you ever NOT want your LED bar on?

Here is an example for you, winding roads, traveling in the dark with your high beams and driving lights on it is often hard to see indicators of oncoming traffic such as lights reflecting off trees. If you can detect somebody is coming from around the corner you can turn your highbeams off before your staring strait at them so nobody gets blided. 2nd example, traveling in urban areas you can often use your high beams but if you also have your LED or HID driving lights the reflection off of traffic signs causes you to blind yourself. Turn off the driving lights all is good. 3rd example, believe it or not some vehicles have their daytime running lights wired through the high beam side, if this is the case your light bar will also be on with your daytime driving lights if you dont have it switched. 4th example, driving at night in snow, often times you get to much glare from your driving lights but can run fine with high beams on.

Wire LED into 2012 F350

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