Question about Skross PRO Light USB AC30PD

Yes, it works between 110 v and 250 v Japan is 110v

This doesn't work at all in Japan because it is three-pole and in my four weeks I only saw three-pole sockets in one place.
Here you need a 2-pin plug. For example, the Skross Travel Station (Skross Travel Station (3 x, Type 11, USB A, 1.50 m)).