Is it possible to use a dimmable LED GU10 bulb on a non-dimmable circuit?
I know you cannot use the opposite.
Yes there is no problem doing this.
Quite simply yes you can. The reason for this is that with a non dimmable circuit the dimmable LED bulbs will either be on (100%) or off (0%) which both settings are absolutely fine for a dimmable bulb. There will be no problems and no flickering.