ACI Model PS-3 Self Diagnostic Bench type Power Supply. Input: 117 Volt AC 60 Hz, 60 WATTS. Output: 13.8 Volts DC 3.3 AMPS, 1.0 AMP Fuse. 4 Lighted Indicators: Output, Overload, OverTemperature, Fuse failure. Automatic Short Circuit Protection. ON-OFF Switch. Very Long Power Cord.