Sunlite 03680-SU MH1000/U/BT37 M47 Metal Halide Lamp, 1000 Watts, Mogul Base (E39), BT37, 12,000 Hours Life, 110,000 Lumen, Clear Finish, 4000K - High Intensity Discharge Bulbs - Amazon.com
Amazon.com : PROTOPIA 1000 Watt Vegetative Metal Halide Lamp MH Grow Light Bulb Lamp, MH 1000W E39, High PAR Enhanced Blue and Violet Spectrums CCT 6000K for Vege Growth and Flower :