This Osram 50 watt bulb uses 12 volts and has a base of GU5.3 2-pin. It has a wide flood beam spread and a 36 degree beam angle. It has an MR16 shape, with a diameter of 2 inches and a maximum overall length of 1.75. This Osram 50 watt bulb has a front glass, axial filament and a color temperature of 2950k. It is a family brand name is Tru-Aim Standard, with a rated life of 2000 hours and a centerbeam candlepower of 1450.