SegaXtreme

I need a Ac Adapter to my Megadrive (model 1). I found one Ac Adapter that fits but i dont know if i can use it. This is the adapter: Output: 12v ~ 1.0 A

And a megadrive needs: 10v ~ 1.2 A

Can i use this adapter? Or will the Megadrive break if i test it?

Thanks