Pearlight 60W E39 UL Listed LED Corn Bulb 5000k Ac277V Energy Saving High Power Light 7800 LM Lighting Angle 360 Degree Light to Replace HPS HID CFL Bulb Certified: Brightness up to 7800 lumen and UL CE RoHs certified. Meet standard of safety and 3 years warranty. Ideal replacements for Conventional Bulbs: Can replace HPS/HID/Halide lights, equal to 300W HID. Easy Installation: Connect directly into Medium E39 Bases, just screw in. Please note that in some case the ballast may have to be bypassed when changing to LED. Most are plug and play but please check (LED use a driver, not a ballast). Good QualityBetter currency driver, aviation aluminum to ensure heat dissipation, built in Maglev fan (SUNON Brand),ABS housing good corrosion resistances, 70-88% energy saving, Epistar led chip,130lm/w. Wide Application: Great for garage, driveway, warehouse, barn, patio, courtyard, garden, street, office, school, hospital, shopping malll,supermarket, station, restaurant, hotel, workshop ,etc, anywhere need bright light.