27W FML 4-Pin Quad Tube GX10Q-4 6500K Daylight Compact Fluorescent Bulb (27W 2 Pack) 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 FML fluorescent bulb, 27W, Base: , Color Temp: 6500K Daylight, Rated Life (hours): 10000, Luminous Flux (lm): 1500