Different kinds of lighting & which are dimmable

Question

we put on an addition & bought several fixtures which we were told would be dimmable. the bulbs are gu10 shielded, which i was told were halogen, then LED, by 2 diff people. the instructions don't mention anything abt what type of bulbs they are, other than gu10, or whether they are indeed dimmable. are these dimmable at all, &/or do we need a special type of dimmer? i've tried to access info myself online but i'm not sure even what to ask...HELP!

Answer

I have seen two types of GU10 lamps. One was a incandescent and the other a compact fluorescent.

The incandescent is dimmable, the compact fluorescent was not.