Voltage 21, Wattage 150, Base GX5.3, Shape MR16, Overall Length (mm) 45, Life Hours 40, Kelvin 3350, CRI 100, Filament CC-6, 32882, Quartzline Reflector, Manufacturer: GE Lighting Reichert/American Optical - 1185A Scope Illuminator - EJA Replacement Light Bulb - Equipment to Lamp - 32882 - Quartzline Reflector - Manufacturer: GE Lighting