The C7000/5K/LED/HDRP corn cob-shaped LED light bulb from Feit Electric provides maximum illumination for large rooms, backyards, barns, or anywhere you need more light. Each bulb comes with an E26 (medium) base and an included 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 watts of electricity - up to 84% less energy than equivalent 400-watt incandescent bulbs. These bulbs have an average life of 35,000 hours/32 years, are ROHS compliant, and are 100% Mercury-free. They have a working range of 120 - 277 volts. These bulbs replace up to a 70w high-pressure sodium HID light bulb, a 175w Mercury Vapor HID light bulb or up to a 175w Metal Halide 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, a Mercury Vapor or a Metal Halide 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.