Re: I'm full of not surprise
"[...] (b) because they never looked that safe."
IIRC The SonOff V1 circuit board tracks carrying the load current were supplemented on the V2 with meatier soldered wires. The cable clamp self-tapping screws weren't really gripping on suitable gauge cable wires. Replacing them with longer ones solved the problem. When firmware flashing - the unit can be powered on low voltage through an added pin header without any mains voltage being present. That is not necessarily the case with similar devices from other sources.
Biting the hand that feeds IT
