【MPPT Hybrid Solar Inverter Off-Grid】This is a new 1500W inverter that works with a 24V and 12V system, on-grid, capable of transferring excess power to the grid. This inverter features a simple design, powerful functions, and ease of operation, making it very suitable for families operating at 220-240V. 【Multiple Functions】3 LED indicators to dynamically display system data and operating status. The comprehensive LCD screen provides user-configurable and easily accessible button operation, such as battery charging current, AC/solar charger priority, and acceptable input voltage based on different applications. 【Remote App Control】WiFi and GPRS applications are compatible with iOS and Android systems. The WiFi Smart ESS app can be used without a network connection (requires 250MB of mobile phone memory).