Usage Tips:With a wide input voltage range from 6V to 40V, the step- converter can accurately adjust output voltage and current.The efficiency can be up to 96 percent , measured at 20A, converting 24V to 12V.It is designed with 75V/80A current dual MOS tube.Input and output high frequency low resistance electrolytic capacitor, low ripple, stable output.Wiring is convenient with these current 30A screw terminals.The module has 2 heat sink could enhance heat dissipation.When there is a between input and output voltage, please decrease 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 percent (24V to 12V, 20A)Output Ripple: less than equal 50mVWiring : TerminalShort Circuit Protection: -recovery (cannot short circuit for long time)Size: 60 x 53 x 27mm / 2.36 x 2.08 x 1.06inchVOand: Output positiveVO-: Output negativeandIN: 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:PCandMetalPackage Contents:1 x 300W 20A Step ConverterOnly the above package content, other products are not included.Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is 1-3cm.