Many theatres and other venues now have LEDs as part of their lighting rigs. Some LEDs are really good, others not so good. What’s the difference? Why does different lighting affect the appearance of costumes and sets? LEDs usually require many control channels in order to make them work at their best, meaning that older control desks struggle and take a long time to programme shows. How do new desks make complex devices quick and easy to use and help make the show look at its best? Mark White from ETC will demonstrate a selection of lights and desks to show just how far LEDs have come already.