This is a very good MPPT solar charger controller, it automatically selects the correct voltage for the solar connection, it can be used for 12v, 24v and 48v connections.It a very solid MPPT solar charger controller that enable fast charging, stops charging when the battery is full , and it is reasonably priced, it is designed to last for a very long time , giving your batteries the adequate charging needed to boost its performance.It can be used in homes, offices, schools, hospitals etc.This Choice MPPT solar charger controller is compactible with all solar panels, you are assured of the best charging daily.An MPPT, or maximum power point tracker is an electronic DC to DC converter that optimizes the match between the solar array (PV panels), and the battery bank or utility grid. ... Check out