Feature: 1. Automatic Management: Compatible with 12V 24V systems, help you automatically manage the work of your solar panels and batteries with built in industrial microcontroller 2. USB Output: This solar charge controller can charge mobile phone, tablet, PC through dual USB output 5V 2.5A (maximum) 3. High Efficiency: Equipped with overcurrent protection, short circuit protection, reverse connection protection, low voltage, overcharge protection, and 3 level PWM charging management. Helping you safely improve system efficiency 4. Fast Charging: Adopt fast charging, large charging and floating charging, realize efficient and fast intelligent charging through the controller, effectively prolong the battery life 5. Application: Suitable for solar power generation system, smart home, solar charger, solar ventilation system, solar light box, solar billboard, solar warning light, etc. Specification: Item Type: Solar Charge Controller System Voltage: 12V 24V Automatic Adaptation Rated Discharge Current: 10A Maximum PV Voltage: Up to 23V at 12V, up to 46V at 24V Float Voltage: 13.7V (Default Value, Adjustable) Discharge Cut off Voltage: 10.7V (Default Value, Adjustable) Discharge Recovery Voltage: 12.6V (Default Value, Adjustable) Charging Recovery Voltage: 13V Light Control Threshold on: Photovoltaic Panel 8V Light Control Threshold off: Photovoltaic Panel 8V USB Output: 2 Way USB Output, 5V 2.5A (Maximum) Standby Current: <10mA Working Temperature: -35~+60℃ Material: ABS. Package List: 1 x Solar Charge Controller1 x English User Manual Note: There is no need to reset when the battery runs out, as will remember various parameters set by the user