theroshyeshiva: rov rosen not only basically condemns the device but even the man/company who is making it as dishonest!. I hope this does not become main stream. its the same concept as leaving a tv on for shabbos.
“I don’t see the downside to putting these in your home for those just in case moments or to prevent accidentally flicking the switch.”
The downside is they will be used regularly even not by accident. better flick a real switch once by accident than use these every shabbos.