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Ah, thanks. I just spend an interesting hour reading about Power factor on wikipedia and related articles. I think they skipped this subject during my high-school physics class. I attached a energy meter instead of my multi-meter. It shows that the Düwi module draws approx. 45mA, but indeed uses les...

Are there any numbers on the stand-by power usage of z-wave modules, specifically the shutter switch modules from Düwi ? I have seen some websites specify that it is below 1W, but I cannot find anything about it in the official documentation from Düwi. Furthermore, my own experiment indicates it is ...