Plug-In CFL Dimmable Yes Wattage Equivalency 100W INC 26 Watts Bulb Base Type 4-Pin (GX24Q-3) Bulb Shape T4 PL Light Appearance 2700 to 2999K Soft White Max Overall Bulb Length 5-1/4 In. Shatter-Resistant No Fluorescent Bulb Type Plug-In Lumens 1800 Bulb Color Temp 2700K Ballast Dependent Voltage Average Bulb Life 17 000 hr. Color Rendering Index 82.0 Bulb Designation F26TBX/A/ECO Bulb Start Type Rapid Bulb Min Starting Temp 32 Degrees F