Light scenes are the interplay of selected lights with levels of light intensity matched and coordinated with each other. With the light scene push button sensor eight light scenes can be saved and called up. Without each light having to be individually switched or dimmed. Light scenes can be modified at any time. Interesting for commercial use: simultaneous blackening or lowering of a screen for presentations can also be saved. The light scene push button sensor is part of the Gira KNX/EIB system.