The P412 is a general purpose high current power supply and battery charger. It is ideal for alarm strobes and horns, access control, etc. requiring up to 4 Amps. The P412 distributes 12VDC power to three (3) sets of DC power terminals, each having a voltage present indicator LED and automatic resetting overload protection. It also features a master On/Off switch and built-in low battery cut-off to protect the backup battery (Choose optional Battery option when ordering)from deep discharging if AC power is off for an extended time. It may be ordered with a 12 Volt, 8 Ah rechargeable battery by selecting this option above when ordering. FEATURES: Switching Power Supply, no transformer needed. Auto Reset fuseless Overload Protection (PTC). Three (3) Individual PTC Protected Power Outputs. Master Power On/Off Switch. Built-in Low Battery Cutoff Circuit. Visual Power Indicators. AC and DC Surge Suppression. Includes Six foot AC Power Cord. Lifetime Limited Warranty. SPECIFICATIONS: Regulated Output Voltage:13.8 Volts D.C. Continuous Current Rating:4 Amps. AC Input Voltage Range:85~264 VAC @ 47-63Hz. Low Battery Cutoff:~/= 10 Volts. Ripple and Noise:100mV p-p. Dimensions:7.5W x 12.5H x 3.75D.