Output Voltage: 13.8 VDC (+/- 0.05 V) Internally Adjustable (11-15 V). Continuous Amperage Output: 3A. ICS (Surge) Amperage Output: 4A. Solid State Electronically Regulated. Fold-Back Current Limiting: Protects Power Supply from Excessive Current and Continuous Shorted Output. Ripple Less than 5 mV Peak to Peak Full Load and Low Line. Maintain Regulation and Low Ripple at Low Line Input Voltage. Three Conductor Power Cord. One Year Warranty. Made in USA. Dimensions: 3.75"H x 6.5"W x 9"D.