The PSW-H converts direct current (DC) to alternating current (AC), with multiple advantages. It has a built-in MPPT charge controller for charging the battery through photovoltaic panels, while also featuring a charger from an AC power source. From the public grid or a generator. It thus provides extremely flexible energy access solutions for a wide range of applications.

A very important feature of this device is the ability to power loads from alternative energy sources (AC supply or battery) separately or jointly, with priority selection between them. For example, the battery charged by the solar panels can be set as the main source, and when additional energy is required by a load, the grid supply can be used as a supplement. Thus, depending on the current need, optimal use of system resources is achieved for the best savings. Another use of the PSW-H is that it can also function as an uninterruptible power supply (UPS). As soon as it detects any interruption in the grid supply, the PSW-H instantly (10 ms) switches to "Off-Grid" mode to safely power the loads directly from the connected batteries.