|It is almost certainly going to be self adjusting but check just incse. |
Most power supplies are made in the Far East and as they are manufacturing for a world market it is unlikely that they would restrict themselves to the relatively small European market by making 220 v only PSUs.
The thing is that if it is 220 v only plugging it in to 110 volts wont do any harm, it just wont work. Unlike the other way round, plug a PSU into 220v when it is set for 110v will just let all the smoke escape.