Shelly support group (English Version), Can anyone help me understand how the Shelly 1 works

Shelly support group (English Version)

Shelly Jones - Paramount

Shelly 1 Add On -> Reed - Bindings - openHAB Community

Shelly Plus 2PM WiFi & Bluetooth 2 Channels Smart

Can Shelly's work with 2 way switches?

Shelly support group (English Version)

Shelly support group (English Version)

Shelly 1PM caught fire. any reliable replacements for 16A relay