Feature:1. Intelligent and Convenient: The solar charge controller is MCU control, which has the advantages of intelligence, strong adaptability, and reliable functions2. MPPT Technology: The solar panel charge controller applies MPPT maximum power point tracking technology, which can work at the best power point of the I V curve, and the efficiency is up to 99%3. Long Lasting Battery: The 12v solar charge controller adopts high accuracy temperature detection and compensation circuit, and the battery life is longer4. 12V 24V: The solar charge controller has automatic identification of 12V 24V system voltage and three stage battery power display. with exquisite structural design and circuit design5. USB 5V Output: The MPPT solar charge controller has overcharge, overdischarge, overcurrent, short circuit, anti reverse connection protection. The 5V output with USB connector meets the charging needs of digital productsSpecification:Item Type: Solar Charge ControllerMaterial:ABSProduct Size: Approx. 13.2 x 10 x 3.2cm / 5.2 x 3.9 x 1.3inIndicator Light:Solar: Charging Status Indicator, Steady Light Means Charging, Flashing Means Entering Floating Charging State.Load: Discharge Status Indicator, when the Load Indicator is On, It Means That the Battery is Allowed to Output, but It Does Not Mean Whether There is Actual Output Current.Battery: Battery Level IndicatorRated Charging Current: 20ASystem Voltage: 12V 24V Automatic AdaptationMPPT Tracking Efficiency: Maximum 99%Overload and Short Circuit Protection: 1.5 Times Rated CurrentNo Load Loss: <10mAOvervoltage Protection: 16V; x2/24VCharge Cut off Voltage: 14.7V; x2/24VDischarge Recovery Voltage: 12.0V; x2/24VDischarge Cut off Voltage: 10.8V; x2/24VUSB Output: 5V 1AWorking Temperature: -35 to+55Scope of Application:Industrial Water, Agricultural Irrigation, Photovoltaic Power Generation, Desert ControlWeight: Approx. 375g/13.2oz.Package List:1 x Solar Charge Controller1 x User Manual