Hi.Dovit features allow owners of a "HiSystem" or "Dovit" home automation system to control their home lights and scenarios. First of all click on "Activate" on your Alexa app, then connect your account or alternatively create a new one and connect it with your home, to find your devices then say "Alexa, discover devices".
The scenarios and lights that can be controlled via Alexa are manageable within your Dovit application. To execute a scene, simply tell Alexa to activate <scenario name>. - "Alexa, activate relax."
To control the lights you can tell Alexa to turn on <light name> - "Alexa turn on room light".
For more information on connecting Smart Home devices visit http://tinyurl.com/alexa-smart-home.