This product is an upgraded version of the traditional all-in-one inverter. Based on the "multi-function integration" of the traditional model, it adds the capability of "modular stacking expansion". It enables flexible expansion of power and capacity, retaining the advantages of all-in-one inverters such as "easy installation and high integration" while solving the pain point of traditional all-in-one inverters—fixed power that cannot adapt to the growth of electricity demand. It is widely used in home electricity upgrade and progressive power supply systems in remote areas.