... with Parameter Changeable. 2,Gel, Sealed and Flooded battery Solar System Controller with (NEW) ---------ViewStar Series The controller ... Over Discharging, Over load , and short circuitReverse Polarity protection: Solar Module, BatteryLoad work mode: ON/OFF,Dusk to Dawn,Light ... and dual timer option)Using a graphical dot matrix LCD display system status and parameters, multi-level menu operation , ...