When unpacking, I was initially surprised and puzzled by this small little device. After connecting the very bright LEDs showed a surprisingly good Image: The radiation is light and change irregularly between many different color combinations. In addition, the light is pulsed at some color combinations and then flicker for a few Seconds. When viewed in the dark and from the outside of the house arises for the Laity and "burglar" a very realistic appearance. For me as a TV technician also quite as much to indicate proximate Wirklichgkeit. Full buy recommendation!