The sliding door with LED panel can be illuminated using a remote control or smartphone app that also allows the brightness and color of the light to be adjusted – in line with the time of day and the corresponding requirements. Bluish light, naturally at its strongest around midday, for example stimulates the human biorhythm and increases concentration levels. In contrast, the yellowish light we experience at sunset slows our bodies down and helps them to rest. The amount of warm and cold light emitted by the LEDs integrated into the sliding door’s frame can be adjusted as required. The power supply is delivered via an energy chain running inside the door’s top guiding rail. It can be regulated using either a remote control or an app with features for switching the lights on and off; for dimming them; and for varying the light color. This provides the door with a visually attractive circumferential light frame that has a softening effect on the door panel. Industrial designer Nane-Sophie Bergmann developed the S1200 LED sliding door.