This light has been installed and powered properly as shown is the photo. I can turn on/off light using App and remote controller. And it seems there is no problem of the smart switch because the “on/off” button in the bottom of this switch works well, and it’s well paired with the light.
But unfortunately, the switch doesn’t work. I have bought 5 yeelight ceiling lights and also 5 smart switches. The others work perfectly.
Any suggestion? I will grateful.