@jon_slider It’s unclear why you think I don’t understand this discussion. I can confirm that this is a very rare issue with the US bulbs. We’ve sold 10s of thousands with mostly happy customers. Like I said, we only see visible changes in places with power that’s too noisy.
Maukka was literally the first person to test the first batch we ever shipped to Europe. It’s good to know upfront if we have a potential issue with this batch.
We will keep testing to see if it’s an isolated case or a widespread case with the European version. The prototype did not have this issue, so we are doing an investigation to see what changed from test to production.
@Lightbringer They are LED “filaments.” Similar concept to regular discrete LEDs except shaped differently, plus our custom phosphor. The stability of light output is mostly due to the driver circuit as the diodes themselves can fluctuate very rapidly to changes in input.