I wired up a set of ELV lights in my dining room and used this particular dimmer switch (Lutron MRF2-6ELV-120-WH) at the switch box.
The wiring was rather straightforward. No more complicated than the attached image. At the switch box, I had everything I needed. Line, load and neutral. The light, though, has a noticable flicker--not too bad when it is turned on full, but when dimmed becomes quite noticeable, especially around 20%. The flicker seems to be about 3-4Hz.
The common consenus seems to be that I didn't properly use the neutral wire, but I am quite sure I did.
Furthermore, I have contacted the manufacturer of the light directly, and asked them if it is known to have any issues with the switch I chose. They actually set up the exact configuration on their test bench and told me that the lights are 100% compatible with the switch and that they had no detectable flicker.
What might I be able to do, if anything, to reduce the flicker?
Is the issue in the integrity of the neutral wire? Is there anything I can do to test that it is properly wired to the breaker box and that there are no "leaks" to ground or elsewhere? Would that even cause the flicker?
Here is an example of a similar wiring situation:
These are the lights, there is no additional transformer. It is all built into the chandelier.