The Westinghouse Filament ED28 LED Light Bulb is ideal for bright light source applications. A ballast bypass energy-efficient replacement for 250-watt HID, it features universal mounting positions, a voltage range of 120 - 277 volts, and built-in surge protection. In addition, a smaller diameter and lighter weight make it a great alternative to corn cob LEDs. This high-lumen LED bulb is perfect for outdoor post-top and wall pack lighting with E39 or EX39 sockets. Suitable for use in damp locations and enclosed fixtures. The bright LED bulb is helpful in geographical areas affected by voltage fluctuations and can withstand momentary surges up to 4000 volts in industrial installations. The 5000K Daylight LED light bulb turns on instantly and maintains higher light output over its lifetime than HID bulbs, with no color shifting. UL/CUL listed. FCC and RoHS compliant. Westinghouse is a trusted, global brand. Westinghouse knows lighting and offers products with exceptional quality, reliability, and functionality. Product reference number 52421.