The HLG-480H-54AB is an LED power supply manufactured by Mean Well. It is rated at 480.6 watts and features 54 volts, 8.9 amps constant voltage and current control, dimming + IO/VO adjustment, and is powered by an AC input of 90-305VAC. This LED power supply also has a wide range adjustable output function for fine-tuning of dimming performance, as well as various protections against overload, short circuit, and overheating. The HLG-480H-54AB is a reliable and efficient source of power for LED lighting applications.