It's sort of an art piece for a rural building. It has to run for years without intervention so I am going to put the whole set up - LED lights and controller on a ups. Here is the idea. There are 4 windows and I will point a LED can at each window. I can use the LED lights to use color to represent certain numbers. I would need 4 windows to do it one for each digit, here is the idea: 0=Black (no light) 1=White 2=Red 3=Orange 4=Purple 5=Green 6=Yellow 7=Blue 8=Cyan 9=Magenta Could be 24 hour clock So 2:24 AM First window Black Second Window Red Third Window Red Fourth Window Purple 2:24 PM or 14:24 First Window White Second Window Purple Third Window Red Forth Window Purple Once it starts it just keeps going. It could be a dedicated controller or open to other ideas. There are probably several ways to do this - I would appreciate your help!