I have just finished putting levelers on my truck and saved the "easy" install for last. I have come to a complete halt. I have absolutely no idea how to wire 4 100 watt off road lights. I found the hole in the firewall and have mounted the light bar and the lights to it. I have been told that I need to purchase a wiring kit, my only question is how many do I need to purchase for 4 lights. If someone could give me an easy step by step install as well as all products needed I would be extremely grateful. Thanks so much!


~Damsel in distress

 

hope this helps some.

a relay has 4 prongs.
my parts list would be:

 

Four 100 watters is a BIG draw.
You should either get a very heavy duty relay, or use two, 1 per pair of lights.

 

good advice. I didn't see you have 4 of those puppies

definetaly should run 2 relays...and make the feeder line a 12-14 gauge line, then seperate out into the 16-18 gauge after the relay

 

That does seem simple. Thanks for your input!! I did manage to find a "kit" that includes wires, fuse, relay, and switch. I have purchased two of these to make my life a little simpler (possibly anyway).However, I have previously purchased 30' of 16 gauge wire (black and white), and a toggle switch (10 amps). Can I use the one kit in its entirety and the relay of the other and still be able to wire to one 10 amp switch? And how would I include two relays in the diagram below?

Sorry if this seems like a stupid question, I just don't want to mess it up the first time around and blow my entire electrical system (bad experiences in the past with my ranger).

btw nice truck Saleenguy

 

use the diagram I made up, but x2.

for the toggle switchredid the drawing for you.

 

I think what your asking is can you trigger two relays, with one switch.

The answer is yes.
Just go to one relay and then have the trigger wire continue to the second one.
Or the power on from relay one could trigger relay two, either way will work fine, whatever you find easiest way to wire it.

The relayes do not draw a lot of lot to the trigger.

I triggered two off of one switch, and think the switch was only rated at 6 amps, and thats more than enough.

 

I read this thread yesterday and got to thinking about it. A 100 watt lamp will draw about 7.5 amps each. I would use at least 14 guage wire from battery to the relay and from the relay outputs to the lights and from the lights to ground. 16 guage wire will be fine to activate the relay.

 

I'm gunna have to agree....16-18 seems too small for me to run to the lights.....i'd use at least 14.....the cost of wire isn't that much different....but the cost of burning up wires can be expensive......

 

my KC daylighters came with 16 guage I believe...no way it was a 14 gauge though

but yeah, it can't hurt to run a bigger wire...for that short a run, there won't be that much of a power loss if a 14 gauge was used

 

should probably run #10 wire to the relays and fuse it @30A. 400 watts at 12/14 volts is 33A/28.5A respectively.