Amazon.com : cdmall Full Spectrum LED Grow Light 400W for Indoor Crops Growing, AlphaPar New Tech LED Grow Lamp Board for Indoor Hydroponic Grow Veg and Flowers (APQ 400W) : Patio, Lawn
Hortilux Metal Ace Conversion (HPS to Metal Halide) Lamp, 400W
400 W Metal Halide Tubular Lamp E40 Base 5055875514973 | eBay
Feit Electric 400-Watt ED28 Shape Clear Metal Halide High Intensity Discharge E39 Mogul Base HID Light Bulb (1-Bulb) MH400/U/ED28/HDRP - The Home Depot