Enclosed AC-DC switching single output power source with single output and DC-DC converter. Universal AC input / Full range. Battery low protections. With power LED indicator and overloading protection, short-circuit and over voltage. DC voltage output on Channel 1: 12 VDC - 3 Amp current intensity. Channel 2: 5 VDC - 3 Amp. Cooling by free air convection. Fixed switching frequency at 45 KHz. Output rated power: 51 W.