Ok after 25 minutes the Apple chat person didn't seem to understand my question. Maybe I can do better here. As you can see I just need a 2 prong adapter, Apple doesn't just sell them without buying some corresponding piece. So are the 2 prong adapters interchangeable regardless of the adapter wattage (12, 45, 60 , etc)? I'm thinking yes just wanted to check, in case I'm missing something. Thanks in advance!