Plug-In CFL Bulb, T6 Bulb Shape, 4-Pin (2G11) Bulb Base Type, Compact Fluorescent, 1080 lm, Dimmable Yes, 18 W, Ballast Dependent, Trade Number F18BX, 10, 000 hr Rated Life, Bulb Type Plug-In, 3, 500 K, 3000 to 3999K, Warm White Light Appearance, 9 in Overall Length, Bulb Primary Application General Purpose, Shatter-Resistant No, Bulb Start Type Preheat, Color Rendering Index 82.0