A handy switch that turns almost any device into a thing with a USB-C input. There's a USB-C connector on the input that you connect to a power supply or powerbank. By soldering the pads to resistors you select the desired output voltage on the pad + and -. This makes it easy to power a soldering pen, charger, FPV goggles or other devices.
The required output voltage must be able to be supplied by the USB power supply/power bank used. If the USB-C power supply is unable to provide the required voltage, the maximum voltage the power supply is capable of delivering will appear on the output.