Docooler&reg; MPPT Solar Panel Battery Regulator Charge Controller 10A Applicable to 24V/36V/48V/60V/72V battery pack system, user can set the output voltage and current according to actual need. Innovative MPPT technology, high tracking efficiency, which can improve the generated energy. Excellent heat dissipation capability: adopts advanced fan temperature control technology for quick control the heat. Simple operation interface: clear LCD color display the current, current, power, charging time, etc. Working modes: MPPT and DC-DC selectable, MPPT for photovoltaic panels application and DC-DC for boost power supply.