I didn't put them on the trailer. I installed them in the rod lockers, gear storage and under the seats. I wired them in with the nav lights system so they are on when the nav lights are on. I night and predawn fish and it sure makes it easier to get gear without having to hold a flashlight. I guess you could use one of those lights that clips to your hat, but personally I hate wearing hats and the light never shines where my bifocals focus.