Osram EVD Halogen Lamp (36V, 400W) 54259 B&H Photo Video
Olympia Lighting 400 Watt Equivalent, 100 Watt 4000K 208-480V LED Corn Bulb, Ballast Bypass | CL-100W11H-40K-E39 | Bulbs.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
Sylvania 64036 M400/U/ED37 METALARC Metal Halide Lamp | Energy Avenue
TotalLEDS 400-Watt EQ E39 Daylight Mogul Base (e-39) LED Light Bulb in the General Purpose LED Light Bulbs department at Lowes.com
400w HPIT Plus Tubular Metal Halide Discharge Lamp 645 4500k Cool White [Giant Edison Screw - E40 - GES Cap] (Philips 400HPITPLUS VZ) - - Amazon.com
iPower 400 Watt Vegetative Metal Halide MH Conversion Grow Light Bulb Lamp High PAR Enhanced Blue and Violet Spectrums CCT 6000K, 400W, glass - Walmart.com
150 Watt E39 LED Corn Bulb - Aries EV - 19,500 Lumens - Repl