Any GU10 work with ST without need for own hub?

All smart bulbs that I’m aware of, including the lightify line, are intended by the manufacturer to always have power. If you turn them off at the regular wall switch, the first problem you have is that you will have to turn them on again manually at that same wall switch. The bulbs cannot hear the next network command when they have no current. The second problem that you will have is that you may shorten the life of the bulb.

There are several ways to solve this issue, as discussed in the following thread under option 2: