This is a mini laboratory power supply based on the XL4015 buck converter. It allows you to adjust the output voltage according to your needs, making it suitable for powering various electronic devices.

The XL4015 module operates with an input voltage of 4V to 38V and provides an adjustable output voltage from 1.25V to 36V. The power supply is connected via a DC Jack, and the output voltage can be fine-tuned using a potentiometer.