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post #1 of 9 (permalink) Old 02-20-2019, 10:22 AM Thread Starter
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Where to Connect LED Light Bar?

I installed a LED bar, but have yet to wire it in. Would like to wire it into light switch circuit for low beams, assuming it will stay on for high beams also.

I am an old fart so am looking for an easily accessible place if possible.

Other concern is current draw. It takes 2 amps. So wherever it goes, the circuit has got to handle an additional 2 amps.

Any help will be appreciated.

2014 420 FPA
Tom P in Sunny Virginia Beach, Va.
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post #2 of 9 (permalink) Old 02-20-2019, 10:35 AM
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LED's don't draw much, so you can tap into headlight wires. You are, however, incorrect on the low beam/high beam circuits.

There are three wires going to your headlights. Green is ground, and then you have blue for high beam and white for low beam.

If you hook the light bar to white and green, it will turn off when you hit the high beams.

If you wire to blue and green, it will turn off when you turn low beams on.
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post #3 of 9 (permalink) Old 02-20-2019, 10:39 AM Thread Starter
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Quote:
Originally Posted by Jeepwm69 View Post
LED's don't draw much, so you can tap into headlight wires. You are, however, incorrect on the low beam/high beam circuits.

There are three wires going to your headlights. Green is ground, and then you have blue for high beam and white for low beam.

If you hook the light bar to white and green, it will turn off when you hit the high beams.

If you wire to blue and green, it will turn off when you turn low beams on.
Thanks. GOOD Info. Will connect bar to High Beams. Any suggestions on easiest way / place to tap into the high beam wires? I am thinking about splicing into blue wire at harness from switch on handlebar. But am concerned about making it watertight. Ground wire can go anywhere.

2014 420 FPA
Tom P in Sunny Virginia Beach, Va.

Last edited by tperk100; 02-20-2019 at 10:56 AM.
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post #4 of 9 (permalink) Old 02-20-2019, 10:59 AM
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I would sure wire the light bar to a relay. If you want the light bar to come on with your low & high beams but turn off when you turn off your lights you can hook it up to the rear running light. That's how I wired my custom headlights I made.

Wayne

2012 Rancher 420: 25" Maxxis Zillas - Polished 12" ITP Wheels - Custom Retrofitted 5000K HID Projector Headlights With Amber LED Parking Lights - Dual 9” Single Row LED Light Bars - KFI Winch Mount - Badlands 2500lb Winch With Disconnect, 6000lb Synthetic Rope & Aluminum Fairlead - Dry Box Mounted On Fender - Custom Stainless Steel Front Basket Rack - Ceramic Coated
Next Mod: Front & Rear Basket Racks
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post #5 of 9 (permalink) Old 02-20-2019, 11:07 AM Thread Starter
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I would sure wire the light bar to a relay. If you want the light bar to come on with your low & high beams but turn off when you turn off your lights you can hook it up to the rear running light. That's how I wired my custom headlights I made.

Wayne
Rear light is great idea. Do I really need to use a relay?

2014 420 FPA
Tom P in Sunny Virginia Beach, Va.
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post #6 of 9 (permalink) Old 02-20-2019, 11:11 AM
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I will be installing a led light bar soon.I found where I can tap the hi beam at the front by headlights.My rancher is a 2019 found the 3 wires white,green,hi beam is blue with a black stripe.Will also use a fused relay.

2019 Honda Rancher TRX 420 FM
Champion 2200 lb Winch
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post #7 of 9 (permalink) Old 02-20-2019, 11:25 AM
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Originally Posted by tperk100 View Post
Rear light is great idea. Do I really need to use a relay?
I cant take credit for the rear light idea, the idea was given to me by a member on here. You may not "need" a relay but id suggest one! I have one for my headlights and another one for my light bars. I tend to over thinks and have OCD pretty bad so to be 100% sure that I wasn't going to damage the bikes harness I choose to install a harness. Like I said, you may not need one but if for some reason you did over heat the factory wire, not only can you do damage to that wire but depending on how hot it gets, you could also damage the surround wires. Just my 2 pennies!

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Originally Posted by Riverc View Post
I will be installing a led light bar soon.I found where I can tap the hi beam at the front by headlights.My rancher is a 2019 found the 3 wires white,green,hi beam is blue with a black stripe.Will also use a fused relay.
Wiring it that way will only allow the light bar to be on with your highbeams. That's not a problem at all, just wanted to make sure you understood that. The way the headlights work is if you have the low beam switch selected power is only sent to the low beam, when your switch is selected to high, it turns off the low beam and turns on the light beam, it doesN'T send power to both the low and high when the switch is on high!

Wayne

2012 Rancher 420: 25" Maxxis Zillas - Polished 12" ITP Wheels - Custom Retrofitted 5000K HID Projector Headlights With Amber LED Parking Lights - Dual 9” Single Row LED Light Bars - KFI Winch Mount - Badlands 2500lb Winch With Disconnect, 6000lb Synthetic Rope & Aluminum Fairlead - Dry Box Mounted On Fender - Custom Stainless Steel Front Basket Rack - Ceramic Coated
Next Mod: Front & Rear Basket Racks
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post #8 of 9 (permalink) Old 02-20-2019, 11:28 AM
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Quote:
Originally Posted by Z7What View Post
Quote:
Originally Posted by tperk100 View Post
Rear light is great idea. Do I really need to use a relay?
I cant take credit for the rear light idea, the idea was given to me by a member on here. You may not "need" a relay but id suggest one! I have one for my headlights and another one for my light bars. I tend to over thinks and have OCD pretty bad so to be 100% sure that I wasn't going to damage the bikes harness I choose to install a harness. Like I said, you may not need one but if for some reason you did over heat the factory wire, not only can you do damage to that wire but depending on how hot it gets, you could also damage the surround wires. Just my 2 pennies!

Quote:
Originally Posted by Riverc View Post
I will be installing a led light bar soon.I found where I can tap the hi beam at the front by headlights.My rancher is a 2019 found the 3 wires white,green,hi beam is blue with a black stripe.Will also use a fused relay.
Wiring it that way will only allow the light bar to be on with your highbeams. That's not a problem at all, just wanted to make sure you understood that. The way the headlights work is if you have the low beam switch selected power is only sent to the low beam, when your switch is selected to high, it turns off the low beam and turns on the light beam, it doesN'T send power to both the low and high when the switch is on high!

Wayne
Thanks again for your help Wayne....That's the way I want the led to work.

2019 Honda Rancher TRX 420 FM
Champion 2200 lb Winch
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post #9 of 9 (permalink) Old 02-20-2019, 12:52 PM Thread Starter
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After all this conversation, I think I am going to wire into the rear running light, and will simply put an inline 5 amp fuse near the splice. My light is rated for 2 amps.

Thanks for all your suggestions.

2014 420 FPA
Tom P in Sunny Virginia Beach, Va.
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