All of my lights came with the wire harness. The only brackets I bought that had the wire harness was the 40", but it was just a simple two wire harness. The 40" light itself had the main wire harness (with switch and relay) in the box .
My Rigid Dually fog light's wire harness came with the (lights and brackets) bought as a combo kit.
My Rigid 20" had the wire harness in the light box. The bracket box only had the bracket.
Are you saying you got NO wiring harness with your 4" LEDs?
I moved my license plate so I could use the full 20" LED light bar (see below):
How are you liking the Hood mount lights? I am thinking of doing that using two D2 Duallys for the lights, do you think that would be a good setup?