Filament ED28 LED replacement for 85 watt CFL and 175 watt HID uses only 32 watts of energy, ideal replacement for high-lumen HID bulbs that operate on 277V building mains (Ballast must be bypassed for HID) Bulb life of 25,000 average rated hours, lasts 22.8 years burning 3 hours per day 120 - 277 voltage range, ideal for areas with voltage fluctuations, built in surge protection to withstand momentary surges up to 4000 volts EX39 extended mogul base LED bulb, instant-on, LEDs contain no harmful mercury, daylight 5000K, no color shifting, non-dimmable, 5000 Lumens These LEDs can be used in enclosed fixtures and damp locations, UL/CUL listed, FCC compliant and RoHs, IP65 rating for protection against dust and water jets