Features: The converter input voltage- is DC 6-40V, adjustable output voltage- is DC 1.2-36V, can be used to convert 24v to 12v 5v, adjustable output current is 0-20A, max-output power is 300W. The step down regulator can apply to constant output current. With a wide input voltage- from 6V to 40V-, the step-down converter can accurately adjust output voltage- and current. The efficiency can be up to 95%,(measured at 20A, converting 24V to 12V). Short Circuit Protection: Self-recovery(cannot short circuit for long-time). when input and output is common grounded, no-load CV output constant voltage-,CC output constant current Adopting 75V / 80A large current dual-MOS tube designed step-down board, Input and output use high frequency low resistance electrolytic capacitor, low-ripple, and gives a stable output. Large current 30A-connection screw terminals, more convenient to install. Application: DIY stabilized voltage- supply, LED car display, mobile power, industrial equipment appliances, LED driver, solar energy, fans, photovoltaic energy, motor, etc. Specifications: Material:ABS Input Voltage: 6V to 40VDC(10V to 40V-is suggested) Output Voltage: 1.2V to 36V DC Output Current: 20A(max-.), 15A(suggested) Efficiency: 95%(24V to 12V, 20A) Output Ripple: ≤50mV Package Includes: 3x CC CV Converter note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.