power cables

If I order UK power cables for things like my Macbook and my Medela breastpump, will I be able use them with those devices?  Not sure if just switching the power cord is enough or if that'll ruin them.  Thanks...

Computer equipment (CPUs and laptops), for the most part have built in voltage thingies allowing for either 110 (US) or 220 (UK). Usually this is indicated by some writing near the plug in. But to be safe just google your Mac and I'm sure there will be plenty of answers. Most appliance....including, I suppose, breast pumps are not set up for switching between voltages. It would fry it.

I think there are a lot of threads on just this subject, and on weighing the merits of buying new over here or attempting to use the plethora of voltage adapters available.

I have brought my PC to England and it works fine. It may say on the plug something like '115v/240v' on the plug to indicate that it switches, mine says that.

the power supplies in most desktop computers are dual voltage with a switch on the back. My laptop and printer are also dual voltage, so for all it was a matter of changing the cord. Just make sure you have the switch set to 220/240 on the PC if yours has a switch.

Same with my monitors; all were dual voltage, so just a matter of switching cords.