TUBULAR T10 CFL 65K DAYLIGHT COMPACT FLUORESCENT LIGHT BULB 7 WATTS LONG LIFE INCANDESCENT REPLACEMENT 7 Watts, 120 Volts, Medium Base Replaces up to 40 watt incandescent bulbs and T10 bulbs 6500K True Daylight Full Spectrum Color Tone 4.8" Maximum Overall Length This T10 tubular CFL bulb is not recommended for use on dimmers