1、LCD 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. 2、Various 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. 3、Heat 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. 4、Efficient: 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. 5、Dual 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. Item Type: MPPT Solar Charge Controller Material: Aluminum Gross Weight: 945g / 33.3oz No Load Current (DC): ≤0.05A Controller Takes Power: Battery or photovoltaic panel to take power Charging Method: MPPT charging function Load: 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 glance Display 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 cooling USB Function: 5V3A charging function Product Size: 131.9x145.5x61.8mm / 5.2x5.7x2.4in 1 x Solar Charge Controller 1 x Manual