The upper-and lower dimming takes place by capacitive contact-free sensors, in which the position of sensor surface & light is determined by finger. Totally 15 brightness level & out are available, which are not necessarily navigated along the "slider-way" by finger; but certainly selection of the favourite brightness spot is possible directly by the tip. the last position of finger is carried as FS20-command for Dimmer The FS20-Dimmer-Slider is set very flexibly, as the sender unit is provided for the installation in Standard-UP-switch & by the help of adapter frames (refer Internet-offer), the adaptation to the respective switching programme can take place in house. The programming of FS20-command can follow separately on two canals so that two independent illuminated scenes are controlled. The programming can take place by integrated IR- receiver diode & can also follow via FS20 IRP (64 63 95). By three covers with delivery (each 1 x in black & in white is pressed, 1 x transparent, no-pressure for individual designing ), & flexible, optical adaptation to ambient is also possible. Delivery without 50-mm-Adapter frames