Features: Automatic Power systems Recognition: Automatically identifies 12V/24V systems to secure effective charging, suitable for various photovoltaic systems without manual adjustments. Improved Energy Transfer: Utilizes MPPT technology to enhances the energy utilization of solar modules, maintaining consistent output even in dim or low-light environment . Integrated Safety Mechanisms: Includes overcurrent, short-circuits, and reverse polarity protections to secure safe operate , minimizing the risk of equipment damage in homes photovoltaic systems. Clear LED Displays: Features easy-to-read LED indicators for real-time monitoring of battery position and charging progress, ideal for outdoor applications to prevent power shortages. small and Resilient Design: Easy to install with a strong , water-resistant, and dust-resistant casing, perfect for outdoor adventurers search stable and mobile energy solution . Specifications: Component : plastic Size: about 120x175mm/4.72x6.89inch Type: 10Amp/20A(optional) Package Includes: 1xSolar Monitor note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.