... , Over Discharging, Over load , and short circuitReverse Polarity protection: Solar Module, BatteryLoad work mode: ON/OFF,Dusk to Dawn,Light ON ... timer, singular timer and dual timer option)Using a graphical dot matrix LCD display system status and parameters, multi-level menu operation ,friendly ... ; x2 /24V ; x4/48V Low voltage disconnect: 11.1 V ;x 2 /24V ;x4/48V Low voltage Reconnect: 12.6V x2 /24V ...