Was doing a kitchen remodel, all new wiring. All dimmers were lutron caseta diva dimmers. Installed and powered up dimmer 1 for the recessed lights 1st, (12) wafer LEDs. Everything with those was working perfectly fine for a few weeks while I waited for the tape light.
Installed and powered up tape light 1, everything was fine.
Installed and powered up tape light 2.
Then the ceiling lights started strobing. At 100% it was noticeable but not severe. At 50% it was straight up strobe lighting.
When I had only 1 tape light section lit, didnt matter wich one, ceiling lights were fine. As soon as I had both tape lights on at the same time as the ceiling lights, ceiling would strobe. Other than the constant power that jumped from box to box they were not connected in any way.
Each tape light dimmer controlled its own 24v dimmable power supply. At no point did I have issues with the tape light or dimming them, only the ceiling lights.
Since the caseta dimmers dont use a nuetral, I swapped out the recessed lighting dimmer with a standard diva dimmer with a neutral connection and everything was fine. I've heard that dimmers that require a neutral can fix weird issues with lighting but I dont know or understand enough about interference or backfeed to know what the actual issue was. Any insight would be appreciated.