Philips Lighting 148692 PL-S Linear Compact Fluorescent Lamp 8.7 Watt 2-Pin G23 Base 600 Lumens 82 CRI 3500K White Alto 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 Philips Single Tube 2-PIN fluorescent bulb, 9W, Base: G23, Color Temp: 3500K, Rated Life (hours): 10000