GERUI 10pcs DC Step up Boost Converter, Adjustable Voltage Regulator Booster Power2V 24V to 5V 28V, Power Supply Module Compatible with Arduino

Mini DC-DC voltage converter, you can easily get 9V 12V 18V 24V voltage, ideal for low power DIY applications. Maximum output current: 2A Input voltage: 2V - 24V Maximum output voltage: 28V Performance: max. 93% Max. This product can be used for LED lamps, small bulbs, radiators, electronic watches, small fans, solar door lamps, chargers, battery powered devices, etc. Voltage control method: the potentiometer points towards the chest and counterclockwise increases the voltage! If you have the problem that the output voltage is not adjustable and the input voltage is always equal to the input voltage, please turn the potentiometer counterclockwise for more than 10 turns before using the module to adjust the voltage normally This module features low voltage lock, current limiting, and thermal overload protection to prevent damage in case of output overload.