A.For this mold and shape, we can supply two different Voltage:
  (1).48V
  (2).12V/24V( automatic identifying) 
B. We can supply 30-45A Current  range for this shape.

1.       Always ensure the battery in full condition;
2.       Over-charging protection;
3.       Over-discharging protection;
4.       Anti-charging protection from battery to solar panel in the night;
5.       Battery polarity converse-connection protection;
6.       Solar panel polarity converse-connection protection;
7.       High current protection: when the loading current is more than rating current of the controller, the controller will automatically lock and "overload" displaying;
8.       Short-circuit protection: when the load is in short-circuit,the contorller will automatically lock and "load short" displaying;
9.       Battery low-voltage protection: when battery's voltage is too low, the controller will automatically shut off and "Battery low" displaying;
10.   Lightening strike protection;
11.   When work normally, the controller will display battery voltage,charging current and the loading current every 5 second;
12.   Controller will summarize and store the charging current and discharging current of the battery;
13.   When power on, the controller will automatically set up shutting/charging voltage,shutting & resuming voltage on loading according to battery voltage,all parameter is for 13 basing on the enviromental temperature of 25℃;
14.   Basing on the change of environmental temperature, the controller will automactially compensate temperature to the charging voltage;
15.   Basing on the actual needing, the user can set up 3 voltages of stopping for charging,shutting & resuming for loading;
16.   To aviod over-charging on the battery,the controller will automatically control the lowest shuting voltage of the loading to be 10v(for 12v battery) & 20v(for the 24v battery), when the value is below,the button of"-" can't be used;
17.   When user want to resume the default settings,only need press the button of"Menu" over 5 seconds;

We can design the current and voltage on the basis of your requirement.

Welcome your proposals.