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, 7W, Base: G23, Color Temp: 4100K, Rated Life (hours): 10000 Compact Fluorescent: Lamp Type - Compact Fluorescent w/o Ballast; Bulb - PL-S; Watts - 7; Base - G23; Lamp Shape/Style - Short; Color Temperature - 4100K; M.O.L (in) - 5 11/32; Avg Life (hrs) - 10000; Initial Lumens - 400; CRI - 82