[Slow motion] Seven-segment LED clock at 1400 FPS

In this video we can see how two different chinese (wooden) LED clocks have their 4 seven-segment multiplexed. From the beginning till 01:59 you can see a slow blue one and from 2:00 you see a much faster multiplexing white LED display. Multiplexing does not only reduce cost and the amount of wires to the display, it also makes the display more energy efficient. Camera: Nikon 1 J3 with supplied optics.