On Ebay theres a whole kit, Processor, PCB's, LED's A fixture to hold the LED's while soldering and a very complete set of instructions with great pictures too. The Fixture is for making 4 X 4 pieces and for soldering the pieces together to make a tier of 8X8 LED's... ETC, Etc, etc it uses rectangular blue LED's and the thing really looks nice. The Price is $99.00... FYI
Bob