110V Light in 220V fixture?
The worst that could happen is that the lamp does not have a genuine safety approval for Europe and it starts a fire, burning down your residence, killing multiple people, and invalidating your insurance, leaving your heirs litigating damages on behalf of your estate. 

'Chances' are quite good that it will be functional on 220VAC, as the label indicates. Sometimes the caps get tired and may pop when they see more voltage than usual, but if it's reasonably new that probably won't happen.