This is an OSRAM HPL bulb. This OSRAM is a long life halogen bulb. This bulb uses 575 watts and 115 volts. The base on this bulb is a G9.5 2-Pin with Heat Sink. The color temperature of this lamp is 3065k with a rated life of 2000 hours.Abbreviation NameHPL575/115XBaseG9.5 2-Pin w/ Heat SinkBulb TypeHalogen BulbsColor Rendering Index (CRI)100Color Temperature (K)3065KDiameter (in) 0.741 Filament4-C8Lamp FinishClear Luminous Flux (LM)12360Maximum Overall Length (in) 3.822 Rated Life (Hours)2000ShapeT6Voltage (V)115VWattage (W)575W