Symbols e.g. numbers, representation device for advertising purposes in e.g. runways of airplanes, has light producing technical unit powered with energy either by existing electric network or with self-sufficient power sources

摘要

The device has a light producing technical unit powered with an energy e.g. solar energy, either by an existing electric network or with self-sufficient power sources e.g. battery. The technical unit is selected from a group consisting of lamp, light tube, fairy lights and light bulb in the form of straight or curved tube and light foil e.g. organic LED. A surface area of landscapes is rock, water surfaces or fields, meadows or at hill side situation.