I've got a dbl 8' along the back wall, over the bench, and one down the side wall, over the other bench (1 car garage). I've got a quad 4' over the front of the car, just behind the opener. I need better lighting on the sides, but I have a 20A duplex on each side of the garage, so I can pull drop lights from them. I put kinda the same setup in the trailer (24' Haulmark). Dbl 8' down each side, and a dbl 4' in the front, over the bench (seperate switch), and a dbl 4' across the back. That way, the car can be in either way, and there's light to work on the front of the car. I've got a 20A duplex in the back, by the door, and a large outlet strip across the front, over the bench. The hookup plug is setup as a 220, which feeds a breaker panel. From there, the lights are on one circuit and the outlets are on the other. My 5500W generator puts out 20A @ 220v.