UV

Ultra Violet. Blacklight. Short wavelength (365-400nm) source of light at the end of the visible light electromagnetic spectrum which causes specially treated materials to fluoresce.

One highly-regarded manufacturer of UV fixtures, paints, and dyes: http://www.wildfirefx.com/.

See the threads: http://www.controlbooth.com/forums/l...lacklight.html, http://www.controlbooth.com/forums/l...tml#post112314, and http://www.controlbooth.com/forums/s...ht-paints.html.