Photographer headed into delivery room—how much light?

To all my photographer friends: how bright is it in a typical delivery room? We will be at a Kaiser hospital in the SF Bay Area, and I need to know what camera(s) to bring. Do I bring Sony a7S, or Sony a7R, which is magical in low light, but lower resolution?

I’ll be using a Sony AX100 for video. It is tempting to try to use a normal camera for video, but the footage is always worse unless you are on a tripod.