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
GE ED37 Cool White Mogul Base (e-39) Metal Halide Light Bulb in the General Purpose Light Bulbs department at Lowes.com
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
Feit Electric 400-Watt Equivalent Indoor Garage 4-Panel Foldable LED Light Bulb, 5000K Daylight (1-Bulb) ADJ8000/5K/LED - The Home Depot
Xtrasun Metal Halide (MH) Lamp, 400W, 7200K
Philips 274498 MH400/U | 400W M59/E Metal Halide Bulb
400W ED37 Clear Mercury Vapor Mogul Base Lamp
Simply Conserve Corn Cob 16800 Lumen EX39 Base 400-Watt EQ ED17 Daylight EX39 LED Light Bulb (2-Pack) in the General Purpose Light Bulbs department at Lowes.com