Step-Down Power Supply Module LM2596 Buck Converter DC to DC 3.2-40V to 1.25-35V High Efficiency Voltage Regulator Module 6 Pack

Input Voltage Range: DC 3.2V to 40V, The input voltage must be 1.5V higher than the output voltage. It cannot be boosted.
Output Voltage Range: DC 1.25V to 35V continuously adjustable voltage, high efficiency (maximum 92%), the maximum output current is 3A.
Easy to use: Connect to power source, adjust the swirl button on the blue potentiometer and monitor voltage with multimeter to get the needed voltage, clockwise to step up voltage and counterclockwise to step down voltage.
High Precision: The buck converter consists of 36u thickened circuit boards, high-Q inductance with output LED indicator, and superior solid-state capacitors, effectively filter out high frequency noise. Suitable for various electronic projects.
Warm Tip: This is a buck module. The input and output interface cannot be reversed. The input voltage must be higher than the output voltage. Factory default stays a high voltage, you need to contra rotate about 7-8 circles before the voltage starts ramping down, 1 circle means +/- 1V.