My younger brother is selling a new brand of LED light bars and is offering me hugely discounted prices to install them on my truck and show them off. I can wire everything up no problem but I don't know the math behind it and I'm having a hard time finding any answers through Google. I apologize if similar has been addressed. I did try searching the forum but didn't find anything close to my situation.
I plan on installing:
two 2" lights with a 3 amp combined draw
two 6" lights with a 3 amp combined draw
one 10" light with a 2.5 amp draw
two 20" lights with a 20 amp combined draw
total 28.5 amp draw.
I plan on wiring them based off this diagram. The blue wire will be tied into my high beams. The gps and vest etc listed will obviously be lights.
I've found that 12 gauge wire will handle a max of 41 amps. The relay switch is a max 40 amp.
I'm wondering what size fuse I should be placing in my inline fuse holder and if I use 12 gauge wire, if this wiring setup will be safe. Any suggestions or notes on what I'm missing?
I'm installing these lights on my 2008 Dodge Ram 1500 SXT Quad Cab, everything has been left stock under the hood, also wondering if I'll need an alternator upgrade for this project.
Thanks for your time!