Bountam wrote

Hello everyone,

I did connection, connect to wifi... But still the light won't go on.

Not used to Ground being Green. threw me off just a little bit there.

Just to confirm.

- with the old basic switch the black wires were connected to each pole correct? generally the load and the live wire are different colours.

- if you have a tester that would be you best bet to check if the switch is passing power 

or go back to you old set up and confirm you are wired correctly.