Enclosed AC-DC switching dual output power source with battery charger (UPS Function). Battery low protection and battery polarity protection by fuse. Alarm signal for AC OK and battery low. With power LED indicator and overloading protection, short-circuit and surge. Cooling by free air convection. Perfect for security systems, emergency lighting systems, alarm systems, UPS systems, central monitoring systems and access systems. Output: 13.8 VDC @ 1.7 Amp. Battery channel: 13.8 VDC @ 0.9 Amp.