The HLG-320H-54A is a 320W AC/DC LED driver featuring a dual mode constant voltage and constant current output. HLG-320H-54A operates from 90 to 305VAC. Voltage output is adjustable from 49 to 58 VDC and current output adjustable from 2.97 to 5.95 A with rated current of 5.95A. Thanks to the high efficiency up to 95%,with the fanless design, it is able to operate from -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-54A is equipped with various function options, such as built in potentiometer to adjust ouput current and voltage, so as to provide the optimal design flexibility for LED lighting system. The HLG-320H-54Ahas a typical lifetime of 62000 hours and a 7-year factory warranty.