A lamp assembly, particularly for an entertainment machine, is made from one or more LEDs soldered to a printed circuit board. In this method, the infrastructure data for at least a section of the travel route immediately ahead is loaded into an on-board memory, the current position of the vehicle is continuously determined using a precise position system, and the commands are calculated on the basis of the position data and the stored infrastructure data. Rubber construction materials made of the cured form of the composition, when exposed to ultraviolet light, undergo surface hydrophilization that endows them with excellent stain resistance, and also have excellent sealing properties.