I'm not sure I'd equate "high-intensity ultraviolet lighting" with "flashlight"; to my mind, that's more of an internal light system thing, or floodlights, not a handheld maglight type device. That's just my opinion, though, seeing as how that's a fluff piece with no actual mechanical rule except for what each individual GM infers from the text.
Essentially, I'd equate that to a normal human having a flashlight pointed in their direction; at worst you get a glare penalty, which I agree might piss someone off.