The Fronius 4,210,094,801 Symo Advanced 22.7-3 480VAC Inverter converts DC electricity from solar panels into AC electricity that can be used to power your home or business. The main benefit of the Fronius Symo Advanced is its high efficiency. With up to 97% efficiency, you can be sure that you're getting the most out of your solar panels. Additionally, the built-in WLAN and Ethernet ports make connecting to your home network easy. This product also has a very reasonable price tag, making it a great value for the money.