Hi everyone!
My mom recently sent over an electric mattress blanket/pad from South Korea that uses 220V, 60 Hz (200W) according to the manual. However, I'm in the UK which uses 230V, 50 Hz. Is it safe to use in the UK? I bought a EU to UK plug adapter and am planning to use it with a surge protected extension cord. Would it be okay like this?
Thank you!

