T8 LED tube bulb brightly illuminates rooms with 5,500 lumens of cool white light using 43 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. Shatterproof coating helps ensure safe handling and use. Nondimmable bulb also features a single-pin base, 82 CRI, 210-degree beam spread, 4,000 Kelvin and more.