Features 1Stabilized Voltage: This charging controller can ensure that the voltage of the controller is stable when charging which can effectively prevent the controller from crashing and ensure the safety of the battery cells. 2MPPT Efficient Charging: The controller can quickly track the maximum power point of the photovoltaic array obtain the maximum energy in real time and improve the energy utilization rate of the solar system. 3Multiple Protection Functions: The controller has the functions of anti reverse charging reverse connection open circuit over voltage overload and power down protection. 4Optional Working Mode: The controller has a variety of working modes to choose from such as pure light control normally open light control and time control combined mode. 5Applicable Battery: This controller can adapt to other types of batteries such as ternary lithium batteries and lithium iron phosphate batteries. Specification Item Type: MPPT Solar Charge Controller Material: Aluminum alloyRated Current: 40APhotovoltaic Maximum Access Power:12V: 40A 520W24V: 40A 1040WController Power Acquisition Mode: Battery or photovoltaic panel to take powerCharging Method: MPPT charging functionLoad: A variety of working modes are available pure light control mode normally open mode light control and time control mode (four periods and morning light)Protection Type: Solar battery anti reverse charging protection battery open circuit protection battery reverse connection protection overload protection etc. Package List 1 xMPPTSolarChargeController1 x Instruction