... with solar panels only... Application: Solar System Controller solar controllerFor household PV Controller Main characteristics: 1. From 12V/30A to48V/ ... functions such as over-charge,over-discharge,over-load,short-circuit,reverse-connect,reverse-prevent at night and over-heat. ... functions such as over-charge,over-discharge,over-load,short-circuit,reverse-connect,reverse-prevent at night and over-heat. ...