Goodlite G-10868 23-watt Replacement Mini Compact Fluorescent 1600-Lumen 6500K T2 Spiral Light Bulb with GU24 Base Twist and Lock, Daylight Soft white light provides a warm, ambient glow equivalent to that of a 100-Watt incandescent bulb 10,000 Hours, 9.1 Years CRI = 82, Energy Star Rated 3.93" Length, 1600 Lumens, 6500K Kelvin Temperature New T2 Technology Small, compact design, fits where standard bulbs are used, a Bulb Packed Individually in a Colored box with UPC bar code Utilizes an advanced electronic ballast so the bulb reaches full brightness quickly