Solar Pump Controller  (LCB) 12/24V, 10A 15A

 Linear Current boosters 

  Linear Current Booster (LCB) pump controllers are DC power converters which are designed to be an interface between a DC solar pump and solar panels.

 LCB are used in solar direct pumping applications.

They can achieve a 30-90% increase in water pumped compared to connecting the pump directly to the solar modules.
Also keeps the motor from stalling in low-light conditions.