General description This DC-DC 20A Step-down Constant Voltage Constant Current Adjustable Car Power Supply Module is designed for high power LED driving applications. It features a wide input voltage range and allows precise adjustments of output voltage and current, making it suitable for various electronic projects. Technical specifications 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% (measured at 24V to 12V, 20A) Output Ripple: ≤50mV Item Size: 60 * 53 * 27mm / 2.4 * 2.1 * 1.1in Item Weight: 89g / 3.1oz Package Weight: 92g Package Size: 70 * 60 * 30mm / 2.8 * 2.4 * 1.2in Wiring Instructions VO +: Output positive VO -: Output negative + IN: Input positive - IN: Input negative CV: Output voltage regulation CC: Output current regulation EN: Enable, low level to disable output; high voltage level is valid Usage When both input and output are grounded, the no-load CV output provides