UL certificate CE&RoHs approval energy efficient stable and durable Features wide voltage input,equiped with clamping circuit,short circuit,open circuit,over heated,over loading and so on protective circuit, high working effciency,little temperature increasing during the working.Dimension 24*17*16MM, output power 3W-5W.450-650MA.PFC:0.55,Efficiency 80%. 3W 5W LED driver