100-Watt Equivalent T3 Spiral Non-Dimmable E26 Base Compact Fluorescent CFL Light Bulb, Daylight 5000K (24-Pack)The Feit Electric 100W Equivalent Daylight (6500K) Spiral CFL Light Bulb is easy to install and has a medium base that fits standard sized light sockets in most table lamps, floor lamps, ceiling flushmounts and other common lighting fixtures. Each CFL bulb supplies 1600 Lumen of light output in a Daylight (6500K) color temperature to beautifully illuminate interior and exterior spaces. The 23 Watt compact fluorescent lamp from Feit Electric turns on