In particular, since this also has a ground, which may be important for a hairdryer and some laptops ...
Be careful, the black locking button that must be pressed before the setting change, this press always completely before the slider is operated. Happened to me is that the UK recruitment has been frozen, and the unit was defective.
In direct contact with the manufacturers I explained the problem, and as irreparable me a replacement unit was very timely sent. High praise for a competent, friendly and quick solution by S-Kross.