This repo contains the data required to control Triones LED lights. I am not sure if this is all the features that these lights support. The slip with the lights I got instructs you to use the HappyLighting app, there are more functions in the app than the lights I have seem to support though. For example there is a timing tab but my lights could not be selected on this tab.
The service and characteristic UUIDs can be found in the TrionesDataProvider class.
The write type is WRITE_TYPE_NO_RESPONSE