AC-DC enclosed single output switching power supply. Universal AC input / Full range. DC voltage output: 3.3 VDC (7 Amp current intensity). With power LED indicator and overloading protection, short-circuit, voltage (Withstand 300VAC surge input for 5 second) and temperature saturation. Cooling by free air convection. High efficiency, long life and high reliability. Rated power: 23.1 W.