A lighting system for use with trucks having an open bed or one covered by a shell include a U-shaped channel support member on which is mounted quartz halogen lamps. The support member is mounted on the side walls of the truck and across the front wall of the bed such that the lights are below the top surface of the side walls. In this way the lights are positioned to illuminate the open or covered bed while not shining above the top of the side walls or closed tail gate. The on/off control of the lights is by a switch located in the cab of the truck. The lighting system is easy to install, attractive in appearance and operated to protect the front wall of the bed from damage.