Mean well hlg series led power supplies constant voltage and current mean well hlg 120h 12a a 12v 120w led driverpower supply that comes in a metal case and features an active pfc function and dual mode constant voltage and constant current outputs that are adjustable via an internal potentiometer this high efficiency psu is a type hl led driver for use in class i division 2 hazardous location luminaires and is ideal for street architectural and bay lighting floodlighting high bay ligh