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 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.Input Voltage: 6V to 40V DC(10V to 40V is suggested)Output Voltage: 1.2V to 36V DCOutput Current: 20A(max.), 15A(suggested)Efficiency: 95%(24V to 12V, 20A)Output Ripple: less than equal 50mVWiring Method: TerminalShort Circuit Protection: Self-recovery (cannot short circuit for long time)Size: 60 x 53 x 27mm / 2.36 x 2.08 x 1.06inchVO+: Output positiveVO-: Output negative+IN: Input positive -IN: Input negativeCV: Output voltage adjustmentCC: Output current adjustmentEN: Enable, low voltage level shut off output; suspension, high voltage level is effectiveWhen input and output is common grounded, no-load CV output constant voltage,CC output constant currentColour:As shownMaterial:PC+MetalPackage Contents:1 x 300W 20A Buck ConverterOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.