HLG-320H series is a 320W AC/DC LED driver featuring the dual mode constant voltage and constant current output.HLG-320H operates from 90~305VAC and offers models with different rated voltage ranging between 12V and 54V. Thanks to the high efficiency up to 94%. with the fanless desian. the entire series is able to operate for -40℃~+90℃ 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-320H is equipped with various function options, such as dimming methodologies. so as to provide the optimal design flexibility for LED lighting system.