This C7000/5K/LED/HDRP corn cob-shaped LED light bulb from Feit Electric provides maximum illumination for large rooms, barns or anywhere you need more light. Each bulb comes with a E26 (medium) base to E39 (mogul) base adapter to easily upgrade HID non-ballast fixtures to LED. Energy-efficient LED technology puts out an ultrabright 7,000 Lumens using just 65-Watt - up to 83% better than equivalent to 400-Watt incandescent. These bulbs have an average life of 35,000-hours/32-years, are ROHS compliant and 100% Mercury-free. The LED light bulb has a working range of 120-Volt - 277-Volt. This bulb can replace up to a 70-Watt high pressure sodium HID light bulb or a 175-Watt Mercury Vapor HID light bulb. LED lights don't need ballast and so can be used in any socket. If you are replacing a high-pressure sodium or a Mercury Vapor bulb, you will need to bypass the ballast which is a quick and easy procedure. Then you can enjoy the energy savings, instant on and brightness that LEDs provide.