How does the smart light switch work with no neutral wire

Thread Starter

jaydnul

Joined Apr 2, 2015
152
Hello,

https://thesmartcave.com/smart-switch-with-no-neutral/

In the above link, I have a question about how the smart light switch works without a neutral wire. Sure, when the switch is open, you will have a potential difference to power the smart switch. But when the light is conducting current, you will have no potential difference to power the smart switch, correct? How does the smart switch receive any wireless signal to turn the lights back off again if it isnt powered?

Thanks
 
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