Victron SmartSolar MPPT 100/20 48V solar charge controller for systems up to 48V.
 
SmartSolar is all about functionality and options.
 
These highly efficient ultra-fast Maximum Power Point Tracking (MPPT) solar charge controllers have it all – from high efficiency, optimal partial shading performance, programmable battery algorithms, street light functions and more.
 
Smart is for built in Bluetooth for monitoring and control with VictronConnect.
 
Options include remote monitoring over the internet via the VRM Portal, also a pluggable LCD display for the larger models.
 
Picture shows a similar unit from the same product series.