Feature:1. This Constant Current Power Supply Volt Reducer Module with a wide range of input from 6V to 40V,the step-down converter can accurately adjust output voltage and current.2. The efficiency max can be up to 95 percent ,measured at 20A,converting 24V to 12V.3. The buck converter designed with dual MOS tube of large current 75V or 80A.4. Adopt with high frequency low resistance electrolytic capacitor for input and output use,low ripple, stable output.5. Board mounted 2 heat sink,enhance dissipation function for the step dowm module.Specification:Features:This Constant Current Power Supply Volt Reducer Module with a wide range of input from 6V to 40V,the step-down converter can accurately adjust output voltage and current.The efficiency max can be up to 95 percent ,measured at 20A,converting 24V to 12V.The buck converter designed with dual MOS tube of large current 75V or 80A.Adopt with high frequency low resistance electrolytic capacitor for input and output use,low ripple, stable output.Board mounted 2 heat sink,enhance dissipation function for the step dowm module.Wiring is convenient with these large current 30A screw terminals. When there is a big difference between input and output voltage,please decrease power and current.Specifications:Material: FR4 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: 50mVWiring Method: TerminalShort Circuit conservation: Self-recovery(cannot short circuit for long time)Item Size: 60x53x27mm or 2.4x2.1x1.1inItem Weight: 89g or 3.1oz Package Weight: 92g or 3.2oz Package Size: 70x60x30mm or 2.8x2.4x1.2inWiring instructions:VO and: output positiveVO-: output negativeand IN: Input positive- IN: Input negative CV: Output voltage regulationCC: Output current regulationEN: enable,low level to turn off output pause,high voltage level is validWhen the input and output are grounded,the no-load CV output is constant voltage,and the CC output is constant current.Package List:1 x 300W 20A Step Down ModulePackage List:1 x 300W 20A Step Down Module