Digilux Digital High Pressure Sodium (HPS) Lamp, 600W, 2000K
600W Equivalent LED Corn Light Bulb, 15000 Lumens, Cool Daylight White 6000K, E26/E39, 150W Large Area Corn Bulb, Medium Base for High Bay, Barn, Warehouse, Factory, Workshop, Backyard - Newegg.com
Eco Farm 250/400/600/1000W MH Full Spectrum Grow Light for Plant - GrowPackage.com
iPower GLBULBM600 600W Grow Light Bulb Metal Halide MH Lamp for Plants High PAR Enhanced Blue and Violet Spectrums CCT 6000K