These are common in China. The card switch acts as a master on/off for most? of the outlets and lights (except for the fridge?).

I forgot about it a couple of times when intending to charge my laptop while I was out.

I had the same thing in a couple of hotels in Sydney and Melbourne that I stayed at 2 years ago. Never seen this anyplace else though.

...

Well, hopefully that isn't the only way to turn the lights on and off.