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E1 Wall Switch (No Neutral, Double Rocker)
Model QBKG39LM manufactured by Aqara
Zigbee ID: lumi.switch.b2lc04
E1 Wall Switch (No Neutral, Double Rocker)
Supports:
decouple mode
power outage memory
on/off
Action types:
doubleboth
doubleleft
doubleright
singleboth
singleright
singleleft
Available from:
Banggood.com
Aliexpress.com
Manufacturer:
Aqara.com
Confirmed working with
If the device is following Zigbee standards it is possible it will work with other gateway solutions, it is just not confirmed as working yet!

Pairing Instructions
Press and hold the button on the device until the blue light starts blinking, release it and the pairing should begin.

If you're having problems pairing, try keeping the device alive (press the button every second) after pairing started, until pairing completed (source: ZHA with Zigate and Aqara device).

If you're having connection or pairing issues read Xiaomi & Aqara Devices - Pairing & Keeping them connected.