Making LED downlights Smart (UK)

[JDRoberts]

@steveb21

Only thing i have noticed is a slight (very slight) buzzing when the led light is turned up max. I have tried both no neautral and neutral setup. Identical issue.
If i disconnect the shelly and wire light direct there is no buzzing. Therfore it is something the shelly is doing.

Buzzing is an unfortunately all too common issue would light and can come from a mismatch between the lamps, the fitting, or the controller in any combination of those three.

Here are a couple of discussion threads:

Buzzing LED's

FAQ Request: Dimmers, Smart Bulbs, Flickers, Buzzing

I see a lot of topics where being able to point to a FAQ on this topic would help a lot. I’ve got a few personal rules of thumb for lighting installations, but I thought it would be a lot better if someone who’s written one of the ST dimmer handlers wrote it so they could mention anything ST or Smart App specific. So this post is definitely a request for a FAQ, not a FAQ itself. But just to get things started…Feel free to use, edit, or toss any of the following. TWO PHYSICAL WAYS TO CONTROL DIMMING Dimming is either controlled by the amount of current the switch sends on the wire to the bulb or the amount of current the bulb decides to draw from the wire. DIFFERENT KINDS OF SWITCHES A switch that controls the amount of current sent may be networked or not. Some switches don’t control …

I haven’t looked at the specs, but the first thing to check would be if the Shelly has a parameter that allows you to change between the different kinds of dimming.