Quoted from 27dnast:
It’s hardly lit like the sun... the lighting in the convention center isn’t overbearing by any measure. It’s well lit and cool on the color spectrum, but I’ve never found it to be overly so. That said, Stern really needs a covered area to make the projected image pop. Any sort of external light is going to wash the image... even insert and GI lights are going to ding it.
Technically you are right, since everyone would die within 3 seconds if you weren‘t.
The hall still is way brighter and less shadowy then the best lit normal location the game will ever sit in.