The Ushio JT120V-1000WB is a 1000W Mogul Based Lamp. 22000 lumens, 3050 degrees Kelvin, burns 2000 hours in any position. Perfect for Chimera Mogul E39 based sockets. This bulb measures 10" end to end and the actual glass is 8" long. Although the Mogul screw base looks like a common household base..its not. It's twice the size. Ushio # 1001134.