Quick verdict
Shelly Dimmer 2 hides behind your existing switch plate and gives you local dimming control without replacing the whole switch. MQTT and native HA integration are both solid. In-wall installation isn't for everyone, but the result is a clean smart dimmer with no cloud dependency.
Standout: Lets you hide the smart bits behind existing switches instead of forcing a visible full-switch replacement.
Last checked: 2026-03-22