A step-up or boost module allows you to increase the volts. An example can be a DIY power supply, the input can be 12V and with this module, the output can be raised to 12-80V adjustable. With this unit, you can adjust both volts and amps.

When you need to power up a high-voltage device from a low-voltage source this unit would be Ideal for taking a 12V battery and boosting the voltage up to a higher voltage. With the extra current protection circuit, you can adjust the constant current to protect your circuit from getting too much voltage by limiting the current draw.

Please note that the trim pot that is used to adjust the output of the module needs to be turned quite a few times before you can see a change in the output.