Features: This constant current step-down power supply module with a wide input range from 6V to 40V, the step-down converter can precisely adjust the output voltage and current. The maximum efficiency can reach 95%, measured at 20A, converting 24V to 12V. The step-down converter designed with dual MOS tube of large current 75V / 80A. Adopt with high resistance and low resistance electrolytic capacitor for input and output use, low ripple, stable output. 2 heat sinks mounted on the board, improve the dissipation function for the step dowm module. Wiring is convenient with these screw terminals of large current 30A. If there is a large difference between the input and output voltage, please reduce the power and current. Specifications: Material: FR4 Input Voltage: 6V to 40V DC (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 Wiring Method: Terminal Short Circuit Protection: