Feit Electric's 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. They emit an invigorating cool white light ideal for reading, working on intricate projects and revealing fine details. Create an energetic mood ideal for craft rooms, bathrooms, kitchens, laundry rooms, utility rooms, outdoor security lighting, classrooms and hospitality settings. T818/850/LED lights turn on instantly, offering flicker-free full illumination with no warmup time compared to fluorescent tubes. They are mercury-free, with a shatter-resistant coating for safe and easy disposal. Each high-quality bulb offers accurate color rendering.