Specifications, Dimensions: 9 x 7, 8 x 4, 3 Inches, Applications, Recreational Vehicles, Heavy Trucks, Buses, Marine Vehicles, Land Mobile Radios, CB Radios, 12 Volt Lighting Systems, AM/FM Sound Systems, Solar/Alternative Power Systems, Any 12V / 24V Equipment, Design Features, The actual output current capability depends upon the input/output voltage ratio, To obtain the actual output current capability at any given input voltage, use the following formula: Output Amps=Input Volts/Output Volts x 45, Shock and Vibration Tolerance, Mount In Almost Any Location, Compact and Light Weight, Reverse Polarity Protection, Current Limiting Circuit, Over Voltage Crowbar Circuit, Non-Isolated For Negative Ground System, Ultra Quiet Low EMI Operation, Rugged Marine Grade Aluminum Case, SKU: APS809