Booster Power Module MT3608 DC Step Up Module Adjustable Converter Booster Power Supply Output 2A

100% brand new and high quality Material: Electronic Component Color: See pictures Input voltage range : 2-24V DC Output voltage range : Max 28V DC Efficiency : 93% Output current : 2A The input voltage should not exceed the maximum input voltage. The peak current output current is no more than TV university. When adjust the blue potentiometer ,please use a multimeter to monitor the voltage Rotating Clockwise can rise the voltage while rotating counterclockwise could lower the voltage When the module output voltage can not be adjusted ( the output voltage is always equal to the input voltage ) Please adjust the potentiometer counterclockwise 20 laps (20 turns) or more till it works. The image is for illustration Size: 3.7 * 1.7 * 1.4cm/1.46"*0.67"*0.55" (L*W*H) No Retail Packages Quantity:1Pc Note: Due to the difference between different monitors, the picture may not reflect  the actual color of the item. Thank you!