Mean well 320w single output switching power supply hlg 320 series ip65 rated mean well hlg 320h 12a the mean well hlg 320h 12a is a 264w single output switching power supply from the hlg 320h series this power supply has a built in active pfc function and feature a wide input range of 90 to 305v ac in addition this power supply is ip65 rated denoted by the a in the manufacturers part number the output voltage and constant current level can be adjusted through the internal potentia