HLG-40H series is a 40W AC/DC LED driver featuring the dual mode constant voltage and constant current output.HLG-40H operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V.Thanks to the high efficiency up to 89.5%, with the fanless design, the entire series is able to operate for -40~+80 case temperature under free air convection.The design of metal housing and IP67/IP65 ingress protection level allows this series to fit both indoor and outdoor applications.HLG-40H is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.