Er... not too dark and not too bright... so somewhere in the middle.
I like to keep eye contact with a partner and so that's what I use to
gauge if the light is right. If I can't see their eyes properly and have
to squint to distinguish, then it's too dark.
If I can lock eyes with ease, I'll be seeing the rest of them just fine. But
aside from the light setting, in response to the question:
Lights on, always. I want to appreciate my partners physique :smile: