Single Output Switching PSU. Universal AC input / Full range. Protections: Short circuit / Overload / Over voltage / Over temperature / Battery polarity protections (by fuse). Cooling by free air convection. Bulit-in temperature compensation function. LED indicator for power on. Output voltage detection signal. 100% full load burn-in test. Applications: security systems (alarms, CCTV and access control systems) and fire protection systems. DC voltage output: 27.6 VDC - 2.7 Amp current intensity. Output rated power: 74.5 W.