They are all 110-220v.
The BIG problem is the Zone for games and DVD's.
All America is Zone 1.........we and bloody Europe are Zone 2, Zone 3 is Asia and Zone 4 is where 99% of people can't buy them!!!!
Hope that helps all of you not aware that unless you buy a pirated game somewhere, which are hacked to all Zones, picking up a game or DVD in the USA will not play on your XBox One or PS4.
Cheers,
Jax