NPF-40D series is a 40W AC/DC LED driver featuring the constant current mode output. NPF-40D operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 90%, with the fanless design, the entire series is able to operate for -40℃~+85℃ case temperature under free air convection. The entire series is rated with IP67 inaress protection level and is suitable to work for a variety of applications at dry.damp or wet locations.NPF-40D is equipped with the 3 in 1 dimming function so as to provide the design flexibilityfor LED lighting system.