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
Matter supports multi-admin, but a device does not automatically appear in every ecosystem just because it was added once. Usually you add the light switch to one controller first, then use that controller’s Matter sharing flow to generate a new setup code for the next controller. Adding the same switch separately from factory-reset state can create isolated fabrics instead of one shared device.
Try the multi-admin path
- Update the switch firmware and the apps or hubs you plan to use.
- Factory-reset the switch only if it is already in a confused or half-paired state.
- Add the switch to the controller you trust most for daily lighting.
- From that controller, look for Matter sharing, paired services, or multi-admin and generate a new pairing code.
- Use the generated code in the second ecosystem while the switch and phone are still on the same local network.
For Rhythm lighting rooms
If the switch controls lights you want in Rhythm, keep one reliable commissioning path and verify local on/off state before building scenes. LightHub can help commission compatible Matter lighting, but it does not fix firmware that lacks multi-admin support or a wall switch wired for the wrong load.
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.