Specification: This is a three-time controller into the evening (evening) working time ,an interval of rest or pause time,Dawn working time (morning light function),the user can according to their needs ,set a different time. A: time(evening working) B: time(Pause working) C: time(dawn working) This is a compatible MPPT charge controller PWM intelligent/efficient/energy saving, he not only has efficient MPPT controller charging function to automatically track the maximum power point, 10%-30%higher than the ordinary controller charging efficientcy, also has standby energy saving, more than 30% energy than ordinary controller, the standby power consumption of only 10mA-15mA. MPPT solar controller applied to the solar photovoltaic system which is used to coordinate solar panels, storage battery and load. It is a very important assembly in the photovoltaic system. It is different from other solar controllers that it is add the comprehensive protection function makes the whole solar photovoltaic system operate efficiently and safely. Timer Intigrated (Lighting function) 1, LCD screen display, 2, Easy operation interface, 3, PWM charging mode+MPPT, 4, Parameter user can reset, 5, A key to open and close the load, 6, A key to restore the factory settings, 7, Battery reverse discharge protection, 8, Battery reverse polarity protection 9, Battery under voltage protection, 10, Overload, short-circuit protection, 11, Automatic temperature compensation function, 12,Can charge and discharge at the same time, Always keep the battery in full status 13, USB 5V charge (current 1500mA) Optional Package contents: 1* 80A MPPT Solar Controller 1* English User Manual 1* Temp Sensor