1、Better Control: This controller can detect the power generation of solar panels in real time and tracking 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. 2、Clear LCD Display: Using LCD to display operating status, operating parameters, control parameters, etc. So you can easily access various parameters through buttons and modify control parameters as needed to adapt to different system requirements. 3、Safe Protection: Input power limiting protection, photovoltaic input terminal high voltage protection, photovoltaic input protection, terminal short circuit protection, photovoltaic input reverse connection protection, load over power protection, load short circuit protection, night anti reverse charging protection, TVS lightning protection, overtemperature protection, which can minimize damage to product components due to installation errors and system failures. 4、Quick Heat Dissipation: Adopting a dual fan system for heat dissipation. With limited current 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. 5、Wide Application: Supports charging programs for different types of batteries, such as colloidal 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. Item Type: Solar Charge Controller No Load Loss: ≤ 0.4W USB Output: 5V 3A Conversion Efficiency: ≤ 98% MPPT Tracking Efficiency: >99% Temperature Compensation Coefficient: -2mv/℃/2V, default value. Working Temperature: -10-+65 ℃ Protection Level: IP21 Electromagnetic Compatibility: Conform to EN61000, EN55022, EN55024 Altitude: ≤ 3000 meters Product Features: 1. Using advanced dual or multi peak tracking, when the battery panel is shaded or partially damaged, multiple peaks will appear on the I-V curve, and the controller can still accurately track the maximum power point. 2. The built in maximum power tracking algorithm can significantly improve the energy utilization efficiency of the photovoltaic system, which is about 25% higher than the traditional PWM charging efficiency. 3. The combination of multiple tracking algorithms can accurately tracking the best working point of the I-V curve in a very short time. 4. The MPPT tracking efficiency can get to up to 99.9%. 5. With advanced digital power, the energy conversion efficiency of the circuit is up to 98%. 6. Support charging programs for different types of batteries, such as gel batteries, sealed batteries, open cell batteries, and lithium batteries. 7. Equipped with current limiting charging mode, when the battery board power is too high and the charging current is greater than the rated current, the controller automatically reduces the charging power to operate at the rated charging current· It can support instantaneous high current startup of capacitive loads. 9. With a LCD fault display, it is convenient for users to determine system faults. 10. Built in over temperature protection, when the temperature exceeds the device setting value, the charging current linearly decreases with the temperature, thereby reducing the temperature rise of the controller and avoiding high temperature damage to the controller. 11. Equipped with temperature compensation function, it can automatically adjust charging and discharging parameters to improve battery service life. 12. Complete electronic protection functions. 13. Adopting a metal casing for better heat dissipation performance. 14. Lithium battery 0V charging function. 1 x Solar Charge Controller 4 x Screw 4 x Wall Plug 1 x User Manual