A very quick Sega Saturn question

Basically, what it says in the topic description. I have a white NTSC-J Saturn now (in addition to my old black NTSC-U Saturn - I have no idea why I bought the NTSC-J one, but I did, so here we are). I know that Japan uses a 100V power source, while the US uses 110-120V. IIRC, people have said you can just plug in the NTSC-J Saturn into a US power source and you won't ever encounter any issues, but I'd rather not fry anything, so I want to double-check before I get ahead of myself.

Although, I should be able to play the games that came with it in my NTSC-U Saturn in the meantime, I'm sure (it has an AR 4-in-1). Hurray, X-Men vs. Street Fighter...

And yes, I'm aware this isn't even a vague question in PAL-land (you sure as hell have to use a transformer), but I haven't lived in PAL-land for over 12 years, so I'd rather stick to the NTSC-land question.

_{(ED: "vauge" -> "vague")}