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Hello Everybody,

I have been designing light modules for different applications and am willing to share some of my findings. First it is very important to use the best white background for the leds as possible. I've tried everything else and white is the best and if it has a gloss finish or shine that is even better. I use alot of opaque white acrylic for my projects and works great. The 2nd important thing is do not aim the led to the surface you want illuminated, i aim the led or leds toward the outsides so it reflects off of the sides of the box and the surface under the led. The 3rd important thing to do is keep the leds at least 1" from the surface to be illuminated so you don't see the pattern of light generated by the led. Fourth consideration is size of the box you are illuminating, a 5000mcd led is good for app 1.5" square 1" deep(as said before,build a prototype and try the number of leds for the brightness you want. Remember you want to adjust the current limiting resistors so when all leds are on you get true white light. Use white transparent acrylic for the surface this gives very excellent results for illuminating the whole surface evenly.

If i was to build the dance floor i would probably use 6 each red, green and blue single leds or 6 rgb leds to illuminate that size of area for one square. You can run the leds in series for red and parallel for green and blue to keep the current low but you would have to use 12volts instead of 5volts which means adding some circuitry on a extra circuit board or to a circuit board at the leds. The main thing is prototype first before building.
Hope this helps, Disco On!
Kevin