Features 1LCD Display: The screen display is rich in content the query setting is simple and the Chinese and English can be switched. Lithium battery specific activation function and stable charging function. 2Various Battery Compatible: Acid batteries ternary lithium batteries lithium iron phosphate batteries and user defined batteries can all be used which is convenient for users to choose. 3Heat Dissipation: Aluminum durable shell heat sink self cooling heat dissipation. The load output can be adjusted in various working modes. The internal circuit board of the controller is sprayed with three proof paint to prevent dust moisture and static electricity. 4Efficient: MPPT control algorithm design more efficient charging including USB charging function can be used in mobile phone charging. The MPPT controller can exert the maximum power of the battery board so it can provide a larger charging current. Generally speaking the MPPT can improve the energy utilization rate by 15%20% than the PWM controller. 5Dual Channel Power: High accuracy sampling chip control maximum rational use of battery energy dual channel power supply function of the controller battery ans solar energy. Specification Item Type: MPPT Solar Charge ControllerMaterial: AluminumGross Weight: 945g / 33.3ozNo Load Current (DC): 0.05AController Takes Power: 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 time control mode (four periods morning light)Display Mode: LCD clear and intuitive clear at a glanceDisplay Parameters:Load: Mode power current fault code;Temperature: Temperature temperature code etc.Protection Type: Solar battery anti reverse charging protection battery open circuit protection battery reverse connection protection overload protection etc.Heat Dissipation Method: Aluminum material heat dissipation and self coolingUSB Function: 5V3A charging functionProduct Size: 131.9x145.5x61.8mm / 5.2x5.7x2.4in Package List 1 xSolar Charge Controller1 x Manual Note 1. Before installation and maintenance ensure that the controller is in a safe and de energized state.2. Please install the controller in a dustfree dry and ventilated place and avoid rainwater infiltration and direct sunlight.3. When installing in the cabinet there should be enough space around the controller or reliable heat dissipation through the box.4. Keep away from corrosive gas and strong electromagnetic interference.5. The installation site should be convenient for personnel to carry out installation electrical connection and later maintenance.6. Virtually connected connection points and corroded wires may cause great heat to melt the wire insulation burn the surrounding materials and even cause a fire so make sure that the connectors are tightened and the wires are best fixed with cable ties to avoid Wires shake when moving causing loose connectors.7. When connecting the system the voltage of the output terminal of the component may exceed the safety voltage of the human body. When it is necessary to operate pay attention to the use of insulating tools and ensure that your hands are dry.8. The battery terminals on the controller can be connected to either the same battery or the same group of batteries. The subsequent instructions in the manual are for the use of a single battery but are also applicable to a system of a group of batteries.9.