Thanks Samsambedded wrote:Have you ever heard about LC-circuit (AKA resonant circuit)?rad14701 wrote: Never heard of an electronics component that wouldn't run on both 50Hz and 60Hz...
There is no potentiometer. It's a digital controller. Microprocessor detects a zero crossing event and sends signal to triac to open after delays wich depends on power level set. Unfortunately delays are precalculated for 50HZ...Potentiometers don't care about Hz.
It's not a big problem to write a firmware such a way that controller will work for 50Hz and for 60HZ. But chinese developers just didn't bother about it.
I want this type of controller to work for me I'll look at the cycles hz

Thanks again.
AC