Homedpot or Lowes and sears have several to choose from that will do the job. I run the pawn shops and they have several also, just know the price before hand and look for one that looks new and test. I have two one in the garage and one in the MH then have a 12 volt in the towed. I have too many things like this but I dont like moving them from one location to another, guess where it will be when I need it.
LEN