CFL 4 Pin, Bulb Base Type 4-Pin (G24q-2), Bulb Finish Frosted, Trade Number PL-C 18W/830/4P/ALTO 10PK, Bulb Shape PL-C, Color Rendering Index 82, Color Temperature 3000K, Incandescent Wattage Equivalency 75 W, Lumens 1,200 lm, Bulb Housing Glass, Light Technology Fluorescent, Shatter- No, Voltage Ballast Dependent, Watts 16.5 W, Bulb Beam Angle 360 Degrees , Three-Way No, Rough Service No, Dimmable Yes, Bulb Power Source Plug and Play, Light Color White, Overall Length 5 5/8 in