BAB/FG Ushio ANSI Coded Bulb: Description - 20 Watts - 12 Volts - 36 Degree Beam Spread - Shape: MR16 (2" Diameter, 1.78" Length) - Base: GU5.3 (5.3 millimeters between pins) - Life: 5000 Hours - Cover Glass over Reflector - Manufacturer:Ushio BAB/FG Ushio ANSI Coded Bulb Part Number BAB/FG