I'll be traveling to Japan this summer and need to get an electrical plug adapter for Class 1 electronics (Lap top, Cell Phone, Games, Portable DVD, etc.). Can anyone recommend one or a website to buy one? My wife bought one from Wallmart, but it says not for use for Class 1 electronics. I tried google, but it just seems quite confusing. Also do you know if I need a step-down converter for voltage? Many thanks. Greg