I mounted an 8' florescent fixture right on the inside portion of the garage door. I ran a piece of SO cord...small round black heavy extent ion cord....from the ceiling, looping the cord to allow for the movement of the door. The SO cord is stapled to they'll inner edge of the door, along the top, over toward either side, and then it goes ABOVE the horizontal track, loop hanging, then to the ceiling. I tied into an existing recessed light fixture in the ceiling of the garage. Door is down....I got light. Door opened....I got light. You can do this.....its easy.