Xiaomi Aqara Wall Switch No Neutral

[h4nc]

Before I got here I oped a new topic about how the no neutral version works, maybe someone knows it here and can give his/hers input here:

Aqara Light Switch - "no neutral" vs. "neutral" version

There are two different models of the Aqara light switch, a “no neutral” and a “neutral” version. You can find it here The know how the smart lightswitches that need a neutral wire work (like e.g. sonoff wall switch). The usually need three wires. Live wire (L), Wire to the bulb (L1) and a neutral wire (N) to power the device itself. Now I found this no-neutral version from aqara and I’m wondering how this works. They even mention that in old building there usually is not neutral wire in the…

Thanks