The modular dock light arms are available in 40- and 60-inch lengths to accommodate the needs of any new construction or refurbishment. Both arm lengths are double strut to hold any combination of lights, fans, or other accessories. The Phoenix modular docklite® head can accommodate up to 15W, PAR 38 LED lamp and includes a spring-loaded socket assembly. It is designed to endure the worst of accidental impacts from forklifts and dock doors, making them ideal for your loading dock.