DC-DC USB Voltage Regulator Adjustable Step Up Down Buck-Boost Power Supply Module Converter 5V to 3.3V 9V 12V 24V

Features: -As long as you have phone charger,this USB 5V adjustable step-up and step-down voltage module,can allows you to output 1V to 24V voltage,and power is 3W. -Also can be used with USB converter,microUSB acts as a input,convenient to use. -Voltage regulator adopts multiple circle of exquisite and long-handle potentiometer,no need to use with screwdriver,manually adjust. -Output voltage display device provides green or red light and available for your option. Specification: Module Model: DC-DC Output: 1-24V(adjustable) Power: 3W Size: 7x2.6cm(2.76x1.02in) Notes: 1.1cm = 0.39inch. 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!