The SPMWHT325AD5YBT0S0 part of SML is an LED driver designed for LED lighting applications. It is a constant current LED driver with a maximum output current of 325mA. It is designed with 96% efficiency, 6kV ESD protection, undervoltage and overload protection. It is compatible with a wide range of LED lighting applications, including street lighting, canopy lighting, and other commercial and industrial applications.