Circular T5 Tube Lamp 16mm in Multiple Sizes - Warm White and Neutral White Options

Do you know if the T5s or T9s can be used with a dimmer switch? I have seen a light with a dimmable ringtube cfl and would like to make one. Any suggestions would be much appreciated.
Fluorescent lamps are dimmable - however to do this the ballast (or control gear) needs to be replaced with a dimmable ballast. These in turn require a specific type of dimmer module using either a digital signal (i.e. Dali) or 1-10v analogue dimmer. These specifics are not something that is often practical in a domestic space and therefore their use is often only found in commercial spaces. There are some free-standing fixtures i.e. floor lamps that have dimmer modules and push-to-make controls but they are not common.