NSI DTD100MH21 Dush to dawn security light. Die cast aluminum housing with dusk to dawn photocontrol included. Wet location listed H 17.5" W 12.125" D28.625". No lens needed/MH protected lamp included. Die cast aluminum housing. Dusk to dawn photocontrol included. 3 mounting options-short arm, 18", 21". Arms and hardware included. UV Resistant Acrylic lens. UL/CUL listed for wet location use. Metal Halide 120 volt 100 watt.