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HLG-320H Series is a 320W AD/DC LED driver featuring the dual mode constant voltage and 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 design, 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-80H is equipped with various function options, such as dimming methodologies, so as to provide the optimal design flexibility for LED lighting system.