This is a shameless copy of @aleksey_z his write up so all credits go to him.
I just wanted to give his discovery a dedicated topic since it might help others and is easier to find like this.
Since I have no screenshots I’m using his. In case someone else can make them with an English interface that would be helpful.
Any suggestions, corrections and additions are also very welcome.
I don't think this step essential
First, I added the gateway WL-Box1 to the MiBoxer app. Then I linked the FUT043 led controller to the virtual remote control FUT089 (zone 1) in the MiBoxer app. It all works.
Put gateway MiBoxer WL-Box1 in pairing mode (red light flashes).
Go to Tuya app and add lighting (LED Strips, WiFi).
Follow the on screen instructions and it will find a 2.4G gateway.
Now the gateway (MiBoxer WL-Box1) is added to the Tuya Smart app.
Now I can switch and change the color of one zone. But I can not switch Scenes???
I have Tuya local integration availeble in HA (from this: Tuya LOCAL with energy monitoring and without tuya-convert and localtuya: https://github.com/rospogrigio/localtuya ), and I can switch and change the mode, brightness, color of one zone. But I can not switch Scenes.