Looking for advice to fix false smoke alarms

Just woke up to a false alarm from my smoke detectors. They went off twice yesterday afternoon, as well. My home was built in 2019, and in 2021, this happened fairly often, so I replaced all my smoke detectors (even though I suspected they weren't the root problem, just cheap). The new ones follow the best guidance I found at the time of alternating ionization and photoelectric to detect different types of fires. They are interconnected and have a sealed 10-year battery (they're FirstAlert if anyone cares, the old ones were Kidde). Since then, they've been pretty good.

All that said, I suspect my issue is voltage fluctuations in the power lines. I have some cheap LED bulbs that flicker all the time (a telltale sign of unclean power). If my suspicion is correct (and I've yet to observe any signs of a fire), do any of you have this same problem? Does anyone have any suggestions on how to fix it? I feel like this system should be rock solid and trustworthy so that my kids actually respond when the alarm goes off instead of thinking the alarms are just "crying wolf". I've got a Honeywell Vista alarm panel and have thought about trying to do conversion from the 120V mains powered alarms to the low-voltage system that can tie into the alarm panel. That would certainly clean the power issues, but that's not a trivial task, as I understand. What are some other options?

Submitted by de-code

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