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
Amazon.com: Vegelumax 400W HPS Super Grow Light Bulb,High PAR Enhanced Red and Orange Spectrum,CCT 2100K,Ultra Bright 55,000 Lumens,E39 Base,1pack : Everything Else
Westinghouse Lighting 400W E39/Mogul LED Light Bulb | Wayfair
GE LIGHTING 400W, ED28 High Pressure Sodium HID Light Bulb: High Intensity Discharge Bulbs: Amazon.com: Tools & Home Improvement
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
Hortilux Metal Halide (MH) HO Lamp, 400W, Horizontal - GreenLightsDirect