How high is the ceiling of the hotel?

The height of the ceiling depends on how high the room is and whether there is a light trough. If you want to install a light trough, you should hang it at least 250 mm If you don't install a light trough, there is no regulation on the height, as long as you don't feel depressed.

Generally, 2.5 is ok, otherwise, make a cable-stayed crane, which is a bit of Southeast Asian style. You can refer to it

I hope my answer can help you.