LED indication
• Power red: Red light indicator will be on if power supply is connected. 
• Wi-Fi (varies):
- Blue light indicator will be on if in AP mode.
- Red light indicator will be on if in STA mode and not connected to a Wi-Fi network.
- Yellow light indicator will be on if in STA mode and connected to a Wi-Fi network. Not connected to Shelly Cloud or Shelly Cloud disabled.
- Green light indicator will be on if in STA mode and connected to a Wi-Fi network and to the Shelly Cloud.
- The light indicator will be flashing Red/Blue if OTA update is in progress.
• LAN green: Green light indicator will be on if LAN is connected.
• Out red: Red light indicator will be on if the Output relay is closed.