MT3608 DC-DC Step Up Boost Power Module Max 2A Adjustable for Arduino Spec Input voltage: 2V – 24V Output voltage: 5V – 28V Max output current: 2A Dimension: 36mm x 17mm x 14mmDescription:Specification:The maximum output current: 2 aThe input voltage: 2 v ~ 24 vThe maximum output voltage: 28 vEfficiency: =93%Product size: approx. 35*15*6mm/1.37*0.59*0.23''Net weight: approx. 40gQuantity: 10pcsMethod of use:The module of the IN+ and - after 2~24v, IN adjusting the potentiometer can adjust output voltage, output voltage is greater than the input voltageNote: The input voltage should not exceed the maximum input voltage.The peak current output current is no more than 2A.