BYSECUR 12v 4a power supply certified grado 3 small metal enclosure 280x167x71, output voltage of 12v 4 amp, current-limited and short-circuit protected, battery charging output, 13.8 v for charging, and monitoring of, 1 battery 12v 7a, alarm outputs for mains failure, batteries, output voltage failure, general failure and tamper., enclosure made from 1.2 mm steel sheet epoxy paint ral 7035, dimensions 280x167x71 mm