[cesarb]

> Underwriters Laboratories, UL. Look at the back of pretty much any mains powered device and you'll see their mark.

I just looked at the closest mains powered device I have here (a fancy humidifier/fan), and only saw an Inmetro mark, there's no UL mark at all.

(My point is: plenty of people are not from the USA. I happen to have already heard that the UL is sort of the USA equivalent of our Inmetro, though like many things in the USA it's a private entity instead of a government entity, but the parent poster probably hadn't heard of that.)