Globe 5475001 50-Watt T4 JCD Halogen Quartz Bulb with G9 Base, 4 Pack Provides crisp, bright and white light. Can be dimmed without the need for a special dimmer. Transformer-freeoperation allows the bulb to run directly off the main voltage supply (110/120V) / ceramic base designed to withstand a high heat. Push-in and pull-out allows for quick and easy removal of the light bulb.