Tungsten reflector 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: Gx5.3, bulb shape: Mr16, average lifetime: 1, 500Hrs Produced using patented quartz-pinched technology allowing for accurate positioning in medical & scientific equipment OSRAM provides high quality for the best long term value