DC Buck Converter 1.25-35V Power Supply Step Down Module

Made of 36u thickened PCB and high Q inductance, with LED output indicator and superior solid state capacitors. This DC-DC modules can work with high effect.
DC 1.25V to 35V, voltage is continuously adjustable, with high efficiency (Max. 92%) and max. output current is 3A.
Connect to the power source, adjust the swirl button on the blue potentiometer and monitor the voltage with a multimeter to get the required voltage, clockwise to increase the voltage and anticlockwise to decrease the voltage.
As a USB 5V buck converter, DIY a phone charger, convert car charger, power raspberry pi 4 b.

NOTE: This is a buck module, the input and output interface can not be reversed. The input voltage must be higher than the output voltage.

Specifications:
Material: Thickened circuit board + High-Q inductance
Size: 4.3 X 2.1 X 1.4cm
Color: Blue + Silver