Has anyone had this issue, and hopefully resolved it?
I have a number of new model GU10 bulbs. Some are colour ambiance, some white only. Each emits a particular, and very annoying high pitched frequency, mostly oscillating, ONLY WHEN OFF. It’s really annoying since these are in the bedroom and at night, when it’s quiet, you can hear it ever so slightly.
I managed to even record the noise on an iPhone :-/