This guide answers a smart-lighting or Matter lighting question and translates
it into a practical checklist for Rhythm users. If you are pairing compatible
Matter lights, the Rhythm Lighting LightHub can commission them from the
Rhythm app: choose Add Device, select Matter, then scan the
QR code or paste the MT: payload / 11-digit setup code. The
LightHub performs the commissioning handshake and keeps the device on your
Matter fabric.
Short answer
Power-recovery behavior is device- and firmware-specific. Some bulbs let you choose whether they return on, stay off, or restore the last state after power returns; others expose no setting through Matter or HomeKit. If the option is missing in your controller, check the vendor app and firmware notes before assuming it is impossible.
Practical workaround
- Update the bulb through the vendor-recommended path if available.
- Look in the native app for “power-on behavior,” “last state,” or “power loss recovery.”
- If the controller cannot set it, create a recovery automation that returns the room to the intended state after the hub sees the bulb come back online.
- Keep critical night lights on conservative defaults so a power blink does not flood a bedroom with full brightness.
Using Rhythm for this setup
Rhythm can reassert the room’s Day or Sleep behavior once the bulb is reachable again. For best results, pair the bulb cleanly, keep firmware current, and use Rhythm room modes as the desired state after outages.
Pairing with Rhythm
For Matter lights and bulbs, the LightHub is the bridge between the app and the device during pairing. Keep the LightHub, phone, and device on the same local network, keep Bluetooth enabled when the device requires BLE commissioning, and make sure the setup code has not expired or already been used by another fabric. Once paired, the LightHub can control the device locally as part of your Rhythm setup.
For a complete Matter-over-Wi-Fi lighting walkthrough, see Pair Matter-over-Wi-Fi bulbs with the LightHub.