Features 1MPPT Charging: This solar charge controller can detect the power generation of solar panels in real time and follow the highest voltage and current value V1 enabling the system to charge the battery at maximum power output. Applied in solar off grid photovoltaic systems coordinating the work of solar panels batteries and loads is the core control component of off grid photovoltaic systems. 2Clear Display: Using LCD to display operating status operating parameters control parameters etc. You can easily access various parameters through buttons and modify control parameters as needed to adapt to different system requirements. With 5V 3A dual USB interface. 3Higher Safety: Designed to have input power limiting protection photovoltaic input terminal high voltage and so on which can minimize damage to components due to installation errors and system failures. 4Stable in Use: Equipped with current limiting charging mode when the battery board power is too high and the charging current exceeds the rated current the controller automatically reduces the charging power to operate at the rated charging current. 5Wider Utility: Support charging programs for different types of batteries such as gel batteries sealed batteries open cell batteries and lithium batteries. Can be used in household photovoltaic power generation systems communication base station systems highway intelligent monitoring systems landscape lighting engineering etc. Specification Item Type: Solar Charge ControllerNo Load Loss: 0.4WUSB Output: 5V 3AConversion Efficiency: 98%MPPT Tracking Efficiency: >99%Temperature Compensation Coefficient: -2mv//2V default value.Working Temperature: -10 - +65Protection Level: IP21Electromagnetic Compatibility: Conform to EN61000 EN55022 EN55024. Altitude: 3000 meters. Package List 1 xSolar Charge Controller