Tungsten lamp with precision filament alignment to ensure optimal light output that is both consistent and reliable Replacement bulb for applications in the medical & scientific fields including microscopy, fiber illumination, surgical & dental overhead lighting, laboratory analysis, and diagnostics Wattage: 100W, Voltage: 12V, Base: G6.35, Average Lifetime: 50hrs, Special Characteristics: Enhanced output with HLX technology HLX technology provides 10% higher luminous efficacy over standard halogen OSRAM provides high quality for the best long term value