23 WATT BR40 DIMMABLE CFL 50K FULL SPECTRUM COMPACT FLUORESCENT LIGHT BULB SPECTRA BRITE 23 Watts, 120 Volts, Medium Base Replaces a 100 Watt BR40 Incandescent Bulb and Lasts up to 10,000 Hours 5000K Full Spectrum Color Tone 6" Maximum Overall Length Suitable for Enclosed Fixtures with a dimming range of 10 to 100 percent