On a recent vacation to England, this straightener performed flawlessly for me. It has a standard US plug, so a converter is still required to put it into a wall outlet, but because it is dual voltage, it can also operate on UK power. I only gave it four stars because using it caused my hair to randomly become trapped and pulled. Otherwise, it performed an excellent job of straightening my naturally curly hair, and even in the snowy and rainy conditions, it remained straight all day.