Shelly Dimmer Gen4 US UL-Certified

Great with one small drawback

I have only had this for about a week, but so far this has performed excellent. I am using the Zigbee protocol with Home Assistant. Very easy to set up and use. Space in the box was a little bit of an issue, but manageable. My only critique is that the turn on and off require at least a 1 second ramp up an down. With my lights, the top part of that ramp is hard to even see the difference in dimness. As a result, when turning off the light from the switch, there is about half a second where it feels like it didn't do anything. I am sure I will get used to this, but if someone is just flipping switches looking for which one controls the light, its possible to flip this off and then on again before seeing the light go off. I have also had a couple of times where I flipped the switch on my way out of the room and stopped for a second thinking I hit the wrong switch, but by the time I have stopped to check, the light is already off. It would be nice if I could remove the ramp feature, but my understanding is it is required by law in the US due to the specific hardware in this gen dimmer.

Install and set up was easy, there are a variaty of parameters to be able to personalize. The option to be able to use a standard or momentary switch is probably the best.

Easy to install, easy to configure, easy to connect to Apple Home and Alexa. Lots of flexibility.