Feature: 1. Solar charge controller is equipped with a display that can clearly display the status and data, and you can easily switch the mode and parameter configuration. 2. Charge controller adopts industrial grade main control chip, which has good performance and durability. 3. Through simple button operation, the system voltage level can be automatically identified, and the solar controller has an smart PWM charging mode and automatic temperature compensation function. 4. Circuit protection function, solar controller has short circuit protection, open circuit protection, reverse protection, overload protection. 5. Wide range of applications, solar energy controller is suitable for household, industrial, commercial, etc. Specification: Item Type: Solar Charge Controller Material: ABS Voltage: 12V,24V Automatic Identification Floating Charge Voltage: 13.8V,27.6V Low Voltage Disconnect: 10.7V,21.4V Low Voltage Recovery: 12.6V,25.2V USB Power Supply: 5V,1A Charging Method: PWM Pulse Modulation Working Temperature: -20℃ to 60℃ Storage Temperature: -30℃ to 70℃. Package List: 1 x Solar Charge Controller1 x User Manual Note: The controller will heat up during operation, please pay attention to install the controller on a flat, well ventilated appearance.