Sun clock with LED-lights instead of the sun

Last year, David Friedman proposed the concept of hours, which are similar to the sun, only instead of sunlight to be used light bulbs, rotating in a circle.And now, with the craftsmen translate it into reality, with its largely improved.The resulting work hours on a sunny, but the reported time with more precision - down to minutes and seconds, and as a source of light using LED-lamps, which are located in three-circle at different altitudes.At each moment in each circle of lights, only one light bulb, the result is the shadow of three different lengths, showing hours, minutes and seconds.And for additional visual effects used lights three colors - red, green and blue.The major components for such hours - plywood for the base, 36 LED-lamps and the necessary electronics.