Mean Well 320W IP67 Dimmable Constant Current/Voltage LED Driver/Power Supply - HLG-320H HLN-320H series 320W dimmable constant current, constant voltage, LED driver / power supply with universal AC input. These IP67 dimmable LED drivers / power supplies have a built in 3 in 1 dimming function and built in active PFC function. Suitable applications for these dimmable IP67 LED drivers / power supplies include LED lighting and street lighting and can be used in dry, damp or wet locations. Full range universal AC inputIP67 design for indoor and outdoor installationFree air convection coolingBuilt in active PFC functionConstant current level adjustable via output cable with 1 to 10 Vdc or 10V PWM signal or resistor3 in 1 dimming function (1 to 10 Vdc or PMW signal or resistance)Short circuit, overload, over voltage and over temperature protectionCompliance to worldwide safety regulations for lightingEMC compliance to EN55015, EN55022 (CISPR22) Class BHarmonic current compliance to EN61000-3-2 Class C (≥50% load); EN61000-3-3