3.5V-18V (must be guaranteed to set the output voltage higher than
the input voltage)
- See more at: http://www.uctronics.com/lm2577-dc-dc-35-18v-to-40-24v-boost-power-module-for-arduino-p-1718l.html#sthash.dEQURquA.dpuf, Output voltage range: 4.0V-24V
