Years ago when I was working on Creepy Doll we put a spot light behind Cookie and turned it up to 10,000.  Turns out doing that burned through her head and made the Eyes Glow which is what we were trying or.  It turns out that in real life you get a light that bright it will go through your body much like an X-Ray

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13