Nearly all electronics manufactured today are capable of being powered (or are provided with power supplies that rectify to DC) between 110-240v at 50 to 60 he

Nearly all electronics manufactured today are capable of being powered (or are provided with power supplies that rectify to DC) between 110-240v at 50 to 60 hertz for that reason! That way the variances across the globe don’t matter too much. You still don’t want to take your expensive 110v hair straightener to the UK without a step down converter though as my wife found out the hard way!