Crazy wiring idea

Just bought a C4 hybrid bumper for my 3rd gen tacoma and I bought 3 pairs of spot lights to add to the bumper. My question goes to the electrical geniuses out there, is it possible to wire all 6 spot lights to one wiring harness and a single button for operation? Or would I have to wire each pair individually? Thanks for your time and expertise.

 

All depends on the current draw of the lights. You might need to run one relay per pair, but all the relays can be wired to the same switch.

 

@caribe makaira Can you help him with this request?

 

The relays that I have always used for automotive things are capable of handling 40 amps on the NO side and 30 amps on the NC side. So, if the lights in total pull 90% or less of whichever side you choose to use, you should be good with one relay for all of the lights.

But I cannot personally think of a good reason to want them all on one switch, but it's also not my ride, so my opinion is irrelevant.

 

Thanks, now I just need to figure out the wiring part. I've wired single pairs of lights to a single wiring harness. I'm trying to picture how I would do 3 pairs of lights with 3 relays and how they would come together into a single wiring harness.

 

The absolute simples way would be to run the control side positive wire from each relay and crimp/solder them into a single terminal at the switch. But I suppose you could cheat and use a relay to activate the other three relays.

 

You would wire them the same as 2 lights, just 3 times. Then you just need to take your trigger wire and split it off to all 3 relays.

 

You might only need one relay... just depends on how much power the lights pull... That is really the first place to start, then measure out where everything will be to see what gauge wire you will need, then wire everything up...

It isn't any different that one set of lights if you want them all to be on the same circuit.

 

So this is the bumper with the lights I'm trying to hook up together. @Speedytech7 I was actually thinking of doing that and hooking up all the positive wires and crimping them together and then doing the same for the negative wires. Then I would do the same on the other side. Just wasn't sure if that would cause an electrical issue. Also the stock wiring from the fog lights is still intact, was thinking of tapping into that for power.

 

Get a wiring heavy duty control cable and make yourself. Make one out of 7 conductor, 6 for each light positive and one for the ground. Or tie the light grounds close to the frame where the lights are to avoid running back to the battery.
https://www.showmecables.com/12-awg...bzOuPTSXwSIn0FtcZeMNTgp_PTBt_khxoC5ZEQAvD_BwE

 

Relay and wires must be able to handle all lights ON.
Fuse per Lamp prevents all going "out", for whatever reason.

 

I thought the OP wanted 6 buttons, a single one for each light per the first post?

 

Or:

 

Ah, guess I misread his post. That simplifies it quite a bit then.

 

This looks right. High amp relay into a fuse panel with a fuse per light would be a clean install.

 

OP, what are the specs of the lamps? (individually)

 

Each pair of squadron lights are rated 12v/40w. I have 3 pairs total.

 

Site says each are 40 watts
2.9 amps each...easy peasy.

 

ATM Low Profile fuse.

 

Or

https://www.bluesea.com/products/5028/ST_Blade_Fuse_Block_-_6_Circuits_with_Cover
Since the switch will be in the cab, an add-a-fuse can be parallel to an ign circuit to send fused juice to relay. Remember to use 18 ~ 20 gauge wire for the relay coil. If your Taco has the additional relay box next to the engine bay main box and it's "populated" than you could tap a fused ignition source there. Then only one wire to cab switch.