Seems to be working ok. 17 x 5w led GU10's on one gang and 24 x 4.5w led 'filament' bulbs on the other gang. It does buzz a bit, but then it's not a trailing edge dimmer.
The gang with the 24 led bulbs on buzzes a lot less than the gang with the 17 gu10's.
The gang with the 24 led bulbs on buzzes a lot less than the gang with the 17 gu10's.