This OSRAM FLK 575W/115V has a G 9.5 bi-pin base, a color temperature of 3200K, and a rated life of 300 hours. This lamp is most commonly used for stage, studio, theatre, TV, and video purposes. Applications • Stage Studio• Theatre• TV• VideoFeatures • OSRAM FLK Halogen Bulb• HX-600• Single Ended Lamp• Metal Base• Replacement for ZB-HX600