SYLVANIA 20616 - F6T5/CW - 6 Watt Fluorescent Tube - T5 Linear Fluorescent Tube - 4200K 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 T5 fluorescent bulb, 6W, Base: G5 2-Pin, Color Temp: 4200K, Rated Life (hours): 7500