RAB Lighting HID-100-EX39 100 Watt Ballast Bypass Post Top Lamp 100-277V - Replaces 400W MH
120W LED Corn Light - 400W MH Equal - 5000K - Ex39 Base - Step Dimming
GE Lighting 22611 LED150ED28/740 DLC Listed 150 Watt LED HID Type B Lamp 4000K Replaces 310W HPS or 400W MH
MH400/U/ED28 400 Watt M59/E Metal Halide Bulb – Green Electrical Supply
125W Retrofit LED Corn Light Bulb E39 Mogul Base 6000K Replacement 400W MH HPS | eBay
100 Watt LED Corn Bulb, 400 Watt HID Retrofit, 14,400 Lumens, Enclosed Fixture, Fan-less, 50,000 Hours, 5 Year Warranty - LED Global Supply
LED Retrofit Lamps for Metal Halide 400W Replacement
HALCO LIGHTING TECHNOLOGIES 400-Watt Equivalent 90-Watt Corn Cob ED37 HID LED High Bay Bypass Light Bulb Mog 120-Volt - 277-Volt in Cool White HID90/840/EX39/LED 84113 - The Home Depot
LED Corn Bulb - 400W Equal - Mogul Base - RAB HID-100-EX39-850-BYP-PT-G2 | CityLightsUSA.com