Power supply variations-

If you are asking because you lost the original wall wart; they sell them at many different milliamps ratings at Radio Shack. For low power applications they have one that is switchable.

The connector is a separate item, so pick one with the right power, and then find a connector that matches. It just plugs in. The first one is no extra charge. They will charge you for more than one connector.

I don't think it will work if the non-recommended wall wart is rated lower; and you will probably short out the component if it is too high.