Circular Fluorescent Bulb T9 Bulb Shape 4-Pin (G10q) Bulb Base Type 1 1/4 in Bulb Dia 8 in Overall Bulb Dia Fluorescent Lumens 1 100 lm 22 W 61V AC Trade Number FC8T9/CW Rated Life 12 000 hr Bulb Type Circline 4100K Dimmable No Shatter-Resistant No Bulb Start Type Rapid Color Rendering Index 60