OKW tuning knobs with illumination guide the user to the central user interface and also give impressive emphasis to innovative equipment design. In the flush-fitting version the knob can be illuminated, that is, a ring lights up between the recess and the knob cover. In the surface-mounted version, the knob is mounted on an approx. 3 mm high ring, which can be illuminated. The matching PCB with energy-saving LED lighting is available as a white or RGB backlight for individual lighting results. In this way you can show your own colour.