Additional Details ------------------------------ Product description: ' Screw-In CFL, Dimmable No, Incandescent Equivalent Wattage 40, 9.0 Watts, Bulb Base Type Candelabra Screw (E12), Bulb Shape B10, Light Appearance 2700 to 2999K, Soft White, Shatter-Resistant No, Fluorescent, Lumens 425, Bulb Color Temp. 2700K, 120 Voltage, Average Bulb Life 8000 hr., Color Rendering Index 82, Indoor/Outdoor, Bulb Start Type Instant, Bulb Min. Starting Temp. -20 Degrees F, Bulb Operating Temp. Range -20 Degrees to 160 Degrees F, Bulb Housing Glass, Three-Way No '