You get the greatest benefit with the new EP-Solar MPPT solar charge controllers when the distance between the panel and charge controller is over 10 meters, for example when the panels are mounted to the beach. In the MPPT charge controllers the panels are always connected in series, no matter if 12V or 24V. With this advanced charge controller the panels can be mounted pointing in different directions. The additional MT50 display shows in real time battery voltage, charging power, power consumption etc. Finnish and English manuals are included.