[wolrah]

> I'm not sure what you mean by the second sentence but you can't use most appliances made for Europe in America and vice versa. Most electronic appliances depend on the input voltage and supplying 240V can easily cause a fire.

Here in America "electronic appliances" would imply the tech/gadget category like TVs or computers where "electrical appliances" would be the big household equipment. Just to clarify in case that confuses anyone else like it did me, it kind of reverses the meaning of what you're trying to say.

Anyways, at least with relatively modern gear you can generally assume that anything with batteries or USB ports runs off a switch-mode power supply, and all but the cheapest of those will happily accept pretty much anything resembling residential power.

Anything with a large motor or any kind of resistive element (lighting, heating) on the other hand is almost certainly built for a specific variety of electrical service and will likely require modification to accept anything else without releasing the magic smoke.

The stuff in between those categories, well, RTFLabel. Outside of audio and ham radio gear I'd imagine most DC stuff runs on switch mode power supplies these days.