LUMO PLAY is a light and sound function. Devices with such a function are very attractive and make a lot of fun. LUMO PLAY function makes traditional playground equipment much more attractive, interacting with children and making the playground sensory. The most popular item with which the LUMO PLAY function can be used is roundabout. It’s is equipped with the LUMO PLAY function thanks to which it shines and makes sounds. Colourful LED lights are placed in the metal handles and the rim of the roundabout floor. To start the lighting and music functions, it is enough to make roundabout rotate. When roundabout is not set in motion, it beeps for a few seconds every 5 minutes and performs light illumination. Additionally, light and sound can be controlled with the LUMO PLAY application. The current (electricity) is generated directly from roundabout movement (no external connection required).