Sylvania 64819 Lamp, 400 W, BT37 Lamp, Mogul E39 Lamp Base, 32,000 Lumens Horizontal, 36,000 Lumens Vertical Lumens

Metal halide general lighting clear lamp, universal operating position. 4000K color temperature, 65 CRI. 15,000 hrs horizontal and 20,000 hrs vertical operation average life.