Smart 3-pin adapter to charge myPower ALL Plus (MP3450/MP3450-10/MP3700) with a solar panel. Intelligent design to boost the solar panel voltage to charge myPower ALL Plus. To use the solar panel with Smart 3-Pin adapter, the solar panel must have a minimum open circuit voltage of 15V. The input female jack connects to 5.5mm x 2.1mm plug. For use with SUNLINIQ 12 Watt and all P3 Products