My son have a nice fox night light, that he really need every night. Unfortunately, it needs batteries (3x AAA) and as we forget to switch it off every morning, it’s kind of battery consumming. (Rechargeable battery is not an option)
So I look into my stock of “Let’s keep it, it may be useful someday” and found a perfect 220V transformer !
As I didn’t want to damage the night light, I decided to keep the option to use batteries : I need to make fake batteries.