Problem installation with Qubino Products!


I have a problem with flush dimmer and Relay 1D
I tried to knows where is the problem but i didn’t find what is the mistake
can any one help me!
This is my product:

And this is my installation videos :

Customer support at @TheSmartestHouse is always very responsive and helpful, in my experience.

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Can you let us know what power source is used in this installation since it’s not clear from the videos? We recommend getting in touch with our support for in-depth troubleshooting of this issue: