2-Piece DC-DC Buck Voltage Converter Power Supply Module Step-Down Module 4-40V to 1.25-37V 2A with LED Display

✔【Convenient DC-DC Step-Down Converter】 The step-down converter lowers the voltage. Input voltage: 4.0-40V, output voltage: 1.25-37V; output current: 2A, output power: 15W, operating frequency: 150kHz. If the output voltage does not match that of the electrical system, you can adjust it manually.
✔【Solderable Power Cable】 The solder connection point is located on the circuit board, allowing you to solder the power cable as needed. Alternatively, you can also connect it to the terminal block.
✔【Operation】 Connect the power supply to the input terminal of the step-down converter and check the output voltage. If the output voltage does not match that of the electrical system, turn the potentiometer using a screwdriver. Turn clockwise to increase the voltage, and counterclockwise to decrease it. After verifying the output voltage, connect the electrical device to the output terminal.
✔【LED Display】The step-down converter accurately displays the voltage and measurement. To switch between input and output voltage display, simply press the right button. To turn off the digital display, press the left button.
✔【Note】If the output voltage cannot be adjusted and remains the same as the input voltage, please turn the potentiometer counterclockwise more than 10 turns before using the module normally. The default output voltage is 20V.