This small torpedo-shaped compact fluorescent bulb is particularly suitable for use in decorative wall sconces, some ceiling fan fixtures, and chandeliers. With an 8000 hour rated life, it is likely to be years before you need to change these light bulbs. This 14 watt model is equivalent to a 40-50 watt incandescent. The base is a candelabra-base. Note that this bulb is not dimmable. * Dimensions: 1.9 inch diameter x 5.4 inches long * Light Output: 720 lumens * Color Temperature: 2,700 degrees Kelvin * Color Rendering Index: 84 CRI * Minimum Start Temperature: -20 degrees Fahrenheit * Maximum Operating Temperature: 160 degrees Fahrenheit * Input Power: 120 Volts AC, 60 Hz Note: This bulb may have reduced rated life in enclosed fixtures or emergency exit lights, and is not suitable in outdoor locations where it would be exposed to the elements, or in conjunction with dimmers, photocells, or electronic timers. This lamp contains mercury. Please recycle at the end of its life.