I'm going to be doing some nighttime dune wheeling this weekend and decided to install some Hella lights to help see those unexpected drop offs. I got some 100w bulbs to replace the 55w bulbs they came with to brighten things up even more.

Now the problem is I'm looking at the wiring diagram they provided:

www.myhellalights.com/mounting_instructions/500_series.pdf

I want these new lights to operate completely independent of the stock lights, can I just run the wire that's supposed to splice into the +12v on the headlight wire harness back to the +battery terminal?

 

Yes, with a heavy duty switch in between. You should use relays with the switch to avoid an electrical fire, but I definitely would not splice into the stock headlight harness. That thing is barely enough gauge to run the headlights alone.

 

Yeah, that will work fine, that's how my lights are wired.

+Terminal to Switch
Switch to Pos. on light
Neg on light to ground

At least, I think that's how I did it, lol, it was late at night, and outside...

Just make sure to get the highest amperage switch you can find if your not going to run a relay, I use a 30amp rated switch, and there's also a 20amp fuse in line between the battery and switch...

 

All that green wire does is show the relay 12v. It does not power them. Hellas should come with the relay. Just run the green wire to the positive battery terminal so they run seperate from your stock lights.