LPF-40D series is a 40W AC/DC LED driver featuring the constant current output.LPF-40D operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54v hanks to the efficiency up to 89%. with the fan ess desian. the entire series is able to operate for -40~+80℃ case temperature under free air convection.The entire series is rated with lP67 ingress protection level and is suitable to work for a variety of applications at dry, damp or wet locations.LPF-40D is equipped with the 3 in 1 dimming function so as to provide the design flexibility for LED lighting system.