I have recently put some smart LED bulbs into my ceiling fan (Lifx if the brand matters) and there is a bad humming noise. Previously there was some humming in at least one of the LED bulbs (they weren't all the same and I don't recall how many made it) but it was much more faint.
I have read that the issue may be the dimmer switch the lights are on, that it may need to be replaced with a special dimmer switch that works with LEDs. How can I tell if my switch is one of these dimmable LED switches or not? Can I tell by looking? I have a very basic multimeter but that is my only tool.
It is worth mentioning that I am aware that now that I have smart lights a wall dimmer is not needed as opposed to a normal switch (dimming is done through the app). If I do end up replacing this switch I will probably put in a "normal" switch instead of an LED dimmer. At this point I am merely trying to diagnose the problem.