Our naturaLED®T8 Tubes type A + B fitting into an existing 4’ fluorescent fixture. Simply plug-and-play with Type A compatibility, or bypass the ballast for Type B luminaries. Replaces 32-watt fluorescent tubes according to the existing system. Frosted lens distributes diffused, efficient task light for offices, schools, retails, or any commercial usage. Our Type A + B Universal Design works with Shunted and Non-Shunted Sockets.