Features: With a wide input voltage range from 6V to 40V, the step-down converter can accurately adjust output voltage and current. The efficiency can be up to 96%, measured at 20A, converting 24V to 12V It is designed with 75V/80A large current dual MOS tube. Input and output use high frequency low resistance electrolytic capacitor, low ripple, stable output Wiring is convenient with these large current 30A screw terminals The for buck module has 2 heat sink that could enhance heat dissipation When there is a big difference between input and output voltage, please decrease power and current VO+: Output positive VO-: Output negative +IN: Input positive -IN: Input negative CV: Output voltage adjustment CC: Output current adjustment EN: Enable, low voltage level shut off output; suspension, high voltage level is effective When input and output is common grounded, no-load CV output constant voltage,CC output constant current Specifications: Input Voltage: 6V to 40V for DC(10V to 40V is suggested) Output Voltage: 1.2V to 35V DC Output Current: 20A(max.), 15A(suggested) Efficiency: 95%(24V to 12V, 20A) Output Ripple: 50mV Wiring Method: Terminal Short Circuit Protection: Self-recovery(cannot short circuit for long for time) Size: 6x4.5x2.7cm/2.36x1.77x1.06inch Quantity: 1 Pc Note: Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Contents: 1 x Power Supply Converter