Features: Made with high quality electronic component for high stability and performance. High output current, the maximum output current can reach 8A. Using high thermal conductivity aluminum heat sinks for quick heat dissipation. Output voltage and output current are adjustable. Applicable to LED driver, vehicle power supply, battery charging, regulated power supply, etc. Specification: Module properties: Non-isolated voltage regulator Input voltage: 10.5-70VDC Input current: Maximum 10A Continuous input current: Maximum 8A Output voltage: 5-58VDC Output current: Maximum 8A Continuous output current: Maximum 6A Constant current adjustable: 0.5-8A Output power: Maximum 180W (The maximum current is 8A when working at low voltage, the maximum output of bare board without auxiliary heat dissipation is 30W, and the maximum output is 50W with heat sink without fan.) Standby current: About 20mA Conversion efficiency: About 90% Reverse polarity protection: No, please first determine positive and negative and then power on Dimensions: Approx. 70 x 52 x 21mm / 2.76 x 2.05 x 0.83in Weight: 74g (approx.) Output Voltage / Current Regulation Method: 1. Adjust the voltage adjustment potentiometer (clockwise to reduce the voltage, counterclockwise to increase the voltage), set the output voltage to the voltage you need according to your load requirements. 2. Adjust the current adjustment potentiometer clockwise by about 20 turns to set the output current to the minimum, connect the LED, and adjust to the current you need. For battery charging, after the battery is fully discharged, connected the battery to the output and adjust to the current you need. Please do not adjust the current by short circuit due to the circuit structure of this boost buck module. Package List: 1 x Boost Buck Converter Note: 1. The input and output current cannot work at the Maximum value, and the input plus output currents can not exceed 12A 2. When the module temperature exceeds 65 , heat dissipation needs to be strengthened.