switch

Shelly Dimmer 2

Shelly

mid HA: excellentFull local control, no cloud needed. Native Home Assistant integration or a local protocol. local: excellentFully controllable on your LAN with no internet dependency. wifimqtt

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Shelly Dimmer 2 module

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

Compatibility snapshot

Home Assistant excellentFull local control, no cloud needed. Native Home Assistant integration or a local protocol.
Apple Home noneNo official support on this platform.
Google Home okayWorks, but with limits or extra setup.
Alexa okayWorks, but with limits or extra setup.
Works offline yes
Setup moderate
Extra hub needed no
Power in-wall retrofit dimmer module

Why it stands out

  • native Home Assistant integration via local HTTP API or MQTT — no cloud needed
  • works without a separate hub or coordinator since it connects directly over Wi-Fi
  • hides behind your existing switch plate so you keep the original wall hardware look

Reasons to hesitate

  • install complexity is higher than plug-in smart devices
  • box depth and wiring realities can be annoying
  • not the easiest answer for beginners who just want a clean packaged switch

Best for

  • retrofit projects where you want to keep existing wall hardware
  • Home Assistant users who want local dimming without a hub lock-in
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Avoid if

  • you want the simplest mainstream smart switch install path
  • you are not comfortable planning around wiring and electrical box constraints

Privacy and local-control notes

Strong local-control story when configured for local use, with far less dependence on vendor cloud behavior than mainstream Wi-Fi dimmers.

Home Assistant support: supported · integration path: native / local.

Buying reality check

Price notes: Often a good value for retrofit projects, though install complexity can be the real cost.

Compare side by side: see switch comparisons →

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