Ideal for outdoor post-top and wall pack lighting, this high-lumen LED bulb fits E39 or EX39 sockets and performs reliably in challenging environments. Engineered to withstand voltage fluctuations, it endures momentary surges up to 4000 volts in industrial applications. Producing 5000K daylight illumination, it turns on instantly and maintains consistent brightness over its lifetime without color shifting. UL/CUL listed for proven safety and performance. | Westinghouse | | ED28 EX39 (Mogul) Filament LED Bulb Daylight 250 Watt Equivalence 1 pk | Best Buy