Can I use GB electrical equipment in Ukraine? If not what adaptor do I need to be able to use it?
Ukraine uses the voltage and frequency as Great Britain 220-240V @ 50Hz They use the same plugs as the rest of mainland europe. All you need is an adapter for your plug and you can use your equipment. See source link for more detail.
Ukraine has 220/240 voltage, and a different 3 prong outlets. You can buy converters in most major stores.
