A 5V-15V Buck Converter Module is what this device is. Since it is the smallest, it is the greatest option for many applications. The module is a high efficiency power amplifier that converts input voltage to output voltage.Any project that needs to interface with a 5V or 15V source can be powered by this little digital power amplifier module. The module has a 15V input voltage and a 5V output voltage. It can also serve as a source of continuous current. Features It is simple to use and powerful. The highest quality parts, which have been tried and proven for high-quality performance, were used in the construction of this module. Additionally, due to its compact size, it is ideal for utilize. Buck Converter Adjustable Model No. GLC1239 Range of Input Voltage 5v–15v 1.2v, 3A as the default output voltage The output voltage ranges from 1.5 volts to 5 volts. Core voltage output of 0.9, 1.15, and 1 volts Other than selectable locations, the output voltage 2.8v, 8.2v, 9.1v, 12v Additional characteristics ON/OFF Switch