39 WATT L SERIES LINE VOLTAGE TRACK HEAD HID LARC - BLACK FINISH - Length: 5 1/2" - Width: 5" - Height: 11 1/8" - L TRACK SYSTEM - For use with HID CDM R111 lamping - Energy efficient high power factor electronic ballast - High efficiency, high color rendering, low glare and long life - Compact track head offers variety of lens and louver options - UL listed - Ideal for applications requiring lower brightness levels