I don't know what kind of LEDs your talking about but I guess it doesn't matter. It's all the same.
I would buy a relay and run a wire from your fuse box to it to power the switch side of the relay.
Then I would run some nice thick wire from my +/- to my relays +/- ports.
Then you have a + side that runs to your switch (whatever style you want)
Then you run a ground from your switch to the battery or frame.
Then run your + from switch to accessory (light)
Then run a - from your accessory (light) either to the battery or frame.
Then drink beer.
Also insert random beers periodically throughout the steps
I have rock lights, and while they can look flashy and cool, I find them extremely useful in the dark. Not so much for navigation, but more for stuff like seeing the ground before you step into a pothole, or puddle, or mud hole. Maybe for working on certain aspects like brakes or axles.
Anyways, there's a pretty easy write-up on how to tap fuse box, and the relays should come with instructions. It's idiot proof, you just gotta dive in.
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