Features: Automatic output after power-on, settable. Adjustable step-down converter,input voltage: 6-65V, output power: 0-400W. With advanced microprocessor, the key can accurately adjust the output of voltage and current. Adopt 4 high brightness digital tube, can display the output voltage, current, capacity, time in real time-. Lock the parameter adjustment button to prevent misoperation of output voltage and current parameters. Through the reserved port can communicate with the MCU or computer, convenient for secondary development. Package Includes: 1X Step Down Module Specifications: Material: plastic+metal Power host: approx 115x58x45mm/4.5x2.3x1.8in Fan: approx 40x40 mm/1.6x1.6in Packing size: approx 13x8.2x9.2cm/5.1x3.2x3.6in Type: fan/non (optional) Input voltage: 6-65V Output: max 480W Output voltage regulating range: 0-60V Output current regulating range: 0-8A Output power: 0-400W High quality power devices, combined with the CV- and CC loops of the peripheral- precision operational- amplifier, greatly improve the performance of the module. It adopts two 0.8mm double-wire winding high-current inductors, two 470uF/100V electrolytic capacitors for input, and two 1000uF/63V electrolytic capacitors for output. It has its own fan for heat dissipation, small temperature rise, and very good output voltage quality. Constant voltage, constant current output. The module has working status indicators, which are output OUT, constant voltage CV-, constant current CC indicators, which can check the working status in real time. note: Please allow 1-3cm 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.