Voltage 21, Wattage 150, Base GX5.3, Shape MR16, Overall Length (mm) 45, Life Hours 40, Kelvin 3350, CRI 100, Filament CC-6, 32882 Manufacturer: GE Lighting, Quartzline Reflector Den-Mat - Marathon II 3940 - EJA Replacement Light Bulb - Equipment to Lamp - 32882 - Manufacturer: GE Lighting - Quartzline Reflector