This is the 1000W/120V Incandescent PAR64 Reflector Lamp. It has an External Mogul End Prong Base Narrow Spot Beam (FFP). This lamp has a color temperature of 3200k. The rated life for this bulb is 800 hours. Abbreviation Name FFP Ansi Code FFP Base GX16d Mogul End Prong Beam Spread Narrow Spot NSP Bulb Type Incandescent Bulbs Color Rendering Index (CRI) 100 Color Temperature (K) 3200K Diameter (in) 7.995 Filament CC-6 Lamp Finish Clear Maximum Overall Length (in) 5.944 Rated Life (Hours) 800 Shape PAR64 Voltage (V) 120V Wattage (W) 1000W