Feit, 15W, Cool White, T8/T12 U-Bend LED Bulb, 32W Equivalent, Non-Dimmable, 2,100 Lumens, 4,100 Kelvin Color Temperature, 50,000 Rated Hours, Shatter Resistant Lens, Flexible Installation Allows Either Plug & Play Using Existing Ballast Or Rewiring To Bypass The Ballast.