Feature:Input Voltage: 2V to 24VOutput Voltage: DC 5V-28VMaximum Output Current: 2AEfficiency: 93%(Minimum) (input-output) difference voltage when input is at (2V and 50% of max-input-V), loading at (50% and 100% rated current)How to Use:The module of the IN+ and - after 2--24V, adjusting the potentiometer can adjust output voltage, output voltage is greater than the input voltage.Note:The input voltage should not exceed the maximum input voltageThe peak current output current no more than TV universityWhen 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 or more (Let potentiometer against your chest, counterclockwise turn boost)Package Included:12 x MT 3608 DC Voltage Regulator Board