Replacing fluorescent tubes with LED lights (lighting retrofit) is one of the simplest ways facilities can cut energy use, reduce maintenance calls, and improve lighting quality. But LED tube retrofits aren’t one-size-fits-all. When you start shopping, you’ll quickly see UL Type A, Type B, Type C, and Dual-Mode (Type A+B) . Each option has its own installation method, long-term maintenance profile, and best-fit applications. This guide breaks down what each type means, the tr
