Voltaic 2 Panel 6V/12V Circuit Box
For use with V15 battery only. Connects two panels in series or parallel - if 6Volt panels are used, output would be 6 or 12V depending on setting. Each input in the circuit box is 3.5 x1.1mm. Two outputs: Micro USB and a female 3.5x1.1mm plug. A blocking diode prevents charge flowing from a battery back through your panel(s).