VaySunic microinverters come in two versions: built-in WiFi and built-in Sub-1Ghz. For example, in model VM800WE-P2, “W” stands fo “WiFi”; while in model VM800BE-P2, “B” stands for “Sub-1Ghz”. The WiFi version is suitable for general distance use. The Sub-1Ghz version is suitable for long-distance use, with a range of up to 400 meters. Additionally, the Solar Control Gateway (SCG) is used to connect Sub-1Ghz versions; the SCG can even connect multiple microinverters together to achieve coverage over further distances.