Steve, you really need to back off of the text formatting. None of it worked on my PC and it made the first few lines just about unreadable with all of the visible formatting tags jammed up in the text. The simple answer is that there is no "color combination" to create "black light" with your LED strings. True black lights operate on a frequency that the smart string LED's were not designed to output. As most will tell you, even the incandescent "black lights" are pretty much worthless. While the filter paint blocks most of the visible light, ican filaments just don't put out much light in the required wave length. The ones that really work are the florescent ones because they are designed to put out much more of the required wavelength. If you really need or want black light in your display to get some things to glow, I would incorporate an actual black light. I do believe that LED black lights exist now and unlike their florescent counterparts, some are dimmable which makes them much easier to use with a standard dimming controller.
