Hortilux Metal Halide (MH) HO Lamp, 400W, Horizontal - GreenLightsDirect
64036 Osram Sylvania M400/U/ED37 400W Clear Metal HID Lamp
MH400U Metal Halide Lamp | AAMSCO Lighting
400W Arc Lamp - Uvitron
Premier 2M400HC 400W MH M59 U JG Metal Halide Light Bulb ED37 - iLighting.com
Ushio LU-400, T15 LU High Pressure Sodium Lamp 5001127 B&H Photo
100W High Performance LED Omni-Cob Lamp 360-Degree (~400W HID) 50K, 14500 Lm 120~347V for Commercial Industrial Lighting OC-100W-EX39-50 - The Home Depot
Osram 46847 - Metal Halide Light Bulb | LightBulbs.com
GE Lighting Metal Halide Light Bulb, ED37 Outdoor Light Bulb, 400-Watt, 36000 Lumen, E39 Mogul Base, White, 1-Pack, Multi-Vapor HID Light Bulb, High Intensity Discharge - High Intensity Discharge Bulbs - Amazon.com