The wet plate guy who does period costumes etc in Gettysburg had both a big skylight and a bank of daylight balanced fluorescents, I am not sure, it's been a couple years, but I think he had at least 8 four footers, maybe more or longer (8 foot) bulbs. On a cloudy Thanksgiving weekend or late November northern hemisphere, Pennsylvania afternoon, it was a 17 second exposure lens couldn't've been more than about f5.6 onto a 5x7. I would not be in a hurry to photograph people in UV, I have a very odd picture of my brother on Xray film (green sensitive) which I think is due to the use of sunscreen (uv absorbing paint by definition...) he looks splotchy and patchy. Much of women's makeup also contains UV absorbers, too. UV is also hard on the eyes---think cataracts etc.