Kobi Electric K3N3 30-watt (100-Watt HID) 277v Corn Light LED 6000K Cool White High Lumen HID replacement, Non-Dimmable UL Listed and Equal to 100w HID (high-intensity discharge lamp) Bulb 100-277 voltage, with 3100 Lumens Corn LED Bulb are normally used in high/low bay fixtures, gyms, warehouses, garages, offices, hotels, and hospitals lighting solutions. 50,000 hr Lifespan Make sure To bypast the ballast In the fixture before installing the Corn LED Bulb. Instructions included.