Wire LED bar to high beams?

I use two relays. On one relay, I connect the switched power from the dash switch to pin 86. Then connect pin 30 to the high beams. Finally on the 1st relay, I connect pin 87 to pin 86 on the second relay. On the second relay, I connect battery to pin 30, and the off road lights to pin 87. I connect pin 85 to ground on both. This configuration puts minimal load on the high beam circuit and allows the off road lights to get full power from the battery. It also allows you to use the high beam switch to control the off road lights with out looking for the dash switch.

Firemedic10584 said:

Hmm...Ok. Once the bar gets here I may end up using your setup. I would rather put the minimal amount of stress on my high beam circuit as possible.

Click to expand...

If needed, I can send you a schematic drawing showing all of the wiring and connections.

Firemedic10584 said:

Ok, I'll just use the relay. It won't be used too often so hopefully there will not be any issues.

Click to expand...

With the high beam connected to the coil of the relay, the only voltage is from the high beams. A diode would not help as it would need to be placed in series with the relay coil and serve no useful purpose, as the polarity would have to be to allow the +12 volts from the high beams to flow to the relay. With nothing other than the high beam power and ground connected to relay coil there will be no voltages feeding back toward the high beam connection of the headlights.

Firemedic10584 said:

Ok, so using the diagram you sent me, I shouldn't have any issues. I'll be doing this install hopefully tomorrow.

Click to expand...

I have been using that schematic for off road light wiring for over thirty years with no issues. I am currently using it on my Jeep for a LED light bar.