Pack of 10 PLS 9W G23 841, 9 Watt Single Tube, 2 Pin Compact Fluorescent Light Bulb Case of 10 PLS9W/841K 9 Watt, Cool White, Color Temperature 4100K Incandescent equivalent: 40 watts. Save energy and go green with an environmentally responsible, eco-friendly lamp Peace of mind with promise of a long lamp lifespan - average of 10,000 hours! With a color temperature of 4100 Kelvin, your space is illuminated with a cool white light CRI: 82, Lumens (light output): 580, Base: G23