I have a newly installed 600W dimmer and a newly installed 75W ceiling mount flushmount light fixture. When the dimmer is set at its lowest setting, the light brightens and dims on its own.

There are no other loads on the circuit at that time.

I am guessing that (1) one of the newly installed dimmers or lights is faulty; or (2) there is a loose or faulty connection.

Any ideas?