I have an LED light bar I want to install on my truck...don't laugh, the new place, in AZ, is 10 miles to the nearest paved road and farther to the nearest light.  All that came with it are the brackets.  Two wire harness is needed as it has a one black and one red wire. I would like to hook it up to the battery direct(actually just to a constant hot) with switch.  What do I need for this? A relay with a switch? A magician or warlock?  Pretend that your talking to a complete idiot because, basically you are.

Here's the unit:

I was told I could order this:

Is there something I could buy at one of the local bix box parts places like autozone, pepboys or advanced auto?

Next attach a inline fuse to the positive battery connection, and run the wire from the fuse to a switch.  The wire from the switch goes to the red connector on the lights.

 

Done.

 

Just be sure to use a wire as heavy/thick/same gauge as the one on the light bar or use a larger wire.  Not smaller.  Look as see what the amperage is for the lights.  It should be on the package or in the info somewhere.   Be sure the fuse is a bit larger that that, and the switch will operate at that same amount or more.

 

If the fuse is too big, it won't protect the wireing.  If it is too small it will pop and you have no lights.  The amp rating of the lights should be no more than 80% of the fuse rating. Use a bigger fuse.  Using a fuse with twice the rating of the lights is too big.  Go inbetween.

 

 

 

Adams' Apple said: "I heard of you....heard you wuz dead..."

kstyer said: Hey Sarge, if you use bigger wire there are more spectacular fireworks when it melts through on the manifold! SHOW TIME!!!!

Hey Dave, stop down at the shop I'll get you hooked up. Free of charge!