T8 LED tube bulb illuminates rooms with 1,800 lumens of cool white light using 14 watts of energy. Highly efficient, LED bulb delivers long-lasting performance for up to 50,000 hours. Easy-to-use design does not require the use of a ballast or external driver. Shock-resistant circuit will not get hot until both ends are installed. Nondimmable bulb also features a bi-pin base, 82 CRI, 210-degree beam spread, 4,000 Kelvin and more.