SYLVANIA 21271 - CF9DS/850/ECO - 9 Watt - 2 Pin G23 Base - 5000K - CFL Fluorescent bulbs are energy saving bulbs and last up to 10 times longer than incandescent bulbs Fluorescent bulbs help you save money using 40 - 70% less energy than incandescent bulbs Fluorescent bulbs are 5-8 times more brighter (more output lumens /watt) than incandescent bulbs Sylvania Single Tube 2-PIN fluorescent bulb, 9W, Base: G23, Color Temp: 5000K, Rated Life (hours): 10000