The MEAN WELL HLG-320H-20A is an AC/DC LED power supply featuring constant current and voltage output for reliable performance. With a power rating of 300W and adjustable output of 20Vdc at 15,000mA (15.0A), this power supply is perfect for high-powered LED applications. Additionally, this model does not support dimming functionality. Trust in the quality and performance of MEAN WELL for your LED lighting needs.