27. März 2023 um 10:30 #2 Zitat von Miroslav Tzonkov May I use those WiFi channels (12 and 13) in Europe/Sofia ? I use the 13 channel in Athens in my rooftop Unifi and the shelly's i have there connect fine.They are a Shelly 1, a Shelly 1PM and sometimes from 1 floor down some shelly plugs connect to it.In other words you will be fine with 13 at least