Goodlite G-10876 40-watt Replacement Full Spectrum Compact Fluorescent 2600-Lumen 2700K T4 Spiral Light Bulb, Warm White Soft white light provides a warm, ambient glow equivalent to that of a 150-Watt incandescent bulb 10,000 Hours, 9.1 Years CRI = 82, Energy Star certified 6.69" Length, 2600 Lumens, 2700K 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