Sylvania 400 Watt Clear ED28 Cool White Metal Halide Bulb | M400/U/ED28 | Bulbs.com
Osram 281179 - High Pressure Sodium Light Bulb | LightBulbs.com
MH400 Metal Halide 400w Grow Light 4200K E39 base 36000Lm T15 Lamp – BulbAmerica
Vegelumax 400W HPS Super Grow Light Bulb,High PAR Enhanced Red and Orange Spectrum,CCT 2100K,Ultra Bright 55,000 Lumens,E39 Base,1pack
MH Lamp 400W – Biohydro
Sylvania 400W High Pressure Sodium HID Light Bulb at Menards®
Xtrasun Metal Halide (MH) Lamp, 400W, 7200K
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
Philips 274498 | MH400/U | 400W M59/E Metal Halide
400W Arc Lamp - Uvitron
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