Feit Electrics 15 W equivalent direct replacement (Type A) non-dimmable linear LED tubes replace F15T8 or T8 fluorescent and LED tubes. They work with most existing electronic ballasts for quick and easy plug-and-play installation, with no rewiring necessary. Each linear LED light produces 1000 lumens using less energy than fluorescents. These bright 5000K Daylight White lights provide crisp light for both residential and commercial spaces.