Enclosed AC-DC switching single output power source with battery charger (UPS Function). Universal AC input / Full range. Battery low protections. With power LED indicator and overloading protection, short-circuit and over voltage. DC voltage output: 27.6 VDC - 5 Amp current intensity. Battery Channel: 27.1 VDC - 0.5 Amp. Cooling by free air convection. Fixed switching frequency at PFC 67 KHz and PWM 134 KHz. Output rated power: 151.55 W.