Simplest way to do it and probably the best is to find the wire that goes into the fuse pannel and set it up so its 120v, u can either tap into an existing 120v fuse or u can pick one up at homedepot and wire up a new one. Since your swapping the voltage at the source your likely to have the best results. Then you can buy a 120v wall socket and wire that up. I never liked the idea of using adapters and such since your going to be running a decent amount of power. You can use the wiring that is already in place. It's pretty strait forward, if u have any problems do a search on how to wire a new fuse in the panel and the wall socket should come with instructions if u dont know how to do it already, worse case have some one do it for you.