Alexa voice command

Hi, I am considering establishing smart home with Samsung Smart Things or HA. I’d like to know if HA can get voice commands by alexa to interact with smart home modules, for example “Alexa, turn on living room lights to 50% please.”
Additionally, I understand that the web UI HA suggests, stored locally, meaning that I am NOT being forced to be connected to the internet at all for operating the smart home, but Samsung Smart Things forces me to log on to a remote web UI on Samsung server. Is that correct ?

Thanks ahead :slight_smile:

Click the big blob on the homepage cunningly titled…

Alexa, Turn On The Lights
Use Alexa to control Home Assistant.