... can carry on realtime monitoring and display to battery voltage,load current,charge current,the day generates/discharges electricity ... over discharge,over load,short circuit,reverse connection over voltage,over heat or first shutdown,second shutdown and so ... island units,and mobile occasions and so on.PV Controller TypeMUC-E15048MUC-E20048MUC-E25048MUC-30048MUC-40048MUC-E50048Rated Voltage48Load Maximum ...