The MEAN WELL HLG-40H-30A is an AC/DC LED power supply designed for constant current and voltage output. With a power rating of 40.2W, this reliable power supply offers an adjustable output of 30 Vdc at 1,340mA (1.34 A). The HLG-40H-30A does not support dimming functionality, making it perfect for applications where a constant illumination level is desired. Trust in MEAN WELL for quality and performance in your LED lighting projects.