Aqara QBKG41LM in Home Assistant
Wall switches · Zigbee · Smart wall switch E1 (with neutral, double rocker)
Zigbee device – see the note above on what ZHA needs for it.
Facts about this device
- Brand
- Aqara
- Model
- QBKG41LM
- Device type
- Wall switches
- Radio
- Zigbee
- Power
- Mains powered
- Reports itself as
- lumi.switch.b2nc01
- Zigbee2MQTT
- Device page on zigbee2mqtt.io
How the device gets into Home Assistant
- official ZHA – with a Zigbee coordinator and the ZHA integration; for all its functions it needs a custom quirk, see above.
- official Aqara hub – paired with an Aqara hub that works as a Matter bridge (such as the M3 or M2), which shares supported devices with Home Assistant.
- add-on Zigbee2MQTT – Zigbee2MQTT runs as an add-on and passes the device on to Home Assistant over MQTT.
Known problems and fixes
Open problems
- open Reported problem #4232
Changes proposed for ZHA
- pull request A change to ZHA for this device has been proposed and is waiting for review.
ZHA quirks for this device
Quirk proposed, not merged yet Recommended quirk
Proposed to ZHA and waiting for review – the maintainers check it before it becomes part of Home Assistant.
Source:
zha-device-handlers · pull request #5087 · by @FerrumLogic · June 12, 2026
Signature: LUMI / lumi.switch.b2nc01
1 more quirk for this device
-
Quirk proposed, not merged yet
LUMI/lumi.switch.b2nc01zha-device-handlers · pull request #4982 · by @kiddyfurby · May 7, 2026
Sources: Zigbee2MQTT, ZHA quirks, Z-Wave JS, the Matter certification database, Shelly, ESPHome, Tasmota, Tuya Local and the issue trackers on GitHub. Reports are assigned to a device by the identifiers they contain; the sentences come from the integration pages, where a language model writes them from the titles.