Black plastic, complete with pre-wired double contact socket and 3' of 16/3-SO cable. Bulb not included. Operates on 12, 24, 32VDC or 120VAC depending on the bulb selection. For door thickness 3/4" - 1-1/2". Certified for use on vessels 20 meters (65.6') to 50 meters (164.0') in length. Lens Red Height 5-1/4"