PacLights 400w Metal Halide MH Replacement, 100-watts Daylight LED, Extreme500 Light Bulb, Mogul Base, Easy Bay Lights LED Retrofit 400w Metal Halide Replacement, High Lumen Maintenance Easy Highbay / Lowbay Retrofit, No Ballast Needed Active Cooling System, IP56 Ingress Protection Instant Startup 5000k Daylight