220 volt plug in problem

You really need to know what you are working with for the supply and for the device

Rv supplies and Amazon, maybe home Depot have conversion adapters.

Also some of the nema plugs are typically or always for 120v while others are typically or always for 220v

Some 220 devices need a neutral so they can also provide 120 to the device. Wall ovens and electric dryers are an example (Typically it would have 3 tabs and a ground, 4 total)