NOVELTY - The molded silicone parts useful for lighting and for disinfecting water, comprise luminous bodies such as LED incorporated into a silicone matrix consisting of an inner soft silicone matrix (A), which is surrounded by a hard silicone matrix (B) optionally coated with a top coat. The luminous bodies are connected in row and/or parallel, emit same wavelength, and are combined with more different radiation characteristics. The inner soft silicone matrix has Shore hardness of less than or equal to 10 Shore-hardness points or a viscosity of 1 to 100x 106 mPa.s (at 23 degrees C and 1013 mbar).    USE - Molded silicone parts containing luminous bodies such as LED useful for lighting, for initiating chemical or biological reactions, for disinfecting water, in bioreactors for the production of biomasses e.g. alga breed, and in combination with a solar cell for provision in a mobile drinking water processing plant (all claimed).    ADVANTAGE - The molded silicone parts can effectively withstand over a long period in physical, chemical or biological environment, effectively protect electric connections between the lamp bodies and connections at current source and have minimum scattering losses.    DETAILED DESCRIPTION - The molded silicone parts useful for lighting and for disinfecting water, comprise luminous bodies such as LED incorporated into a silicone matrix consisting of an inner soft silicone matrix (A), which is surrounded by a hard silicone matrix (B) optionally coated with a top coat. The luminous bodies are connected in row and/or parallel, emit same wavelength, and are combined with more different radiation characteristics. The inner soft silicone matrix has Shore hardness A of less than or equal to 10 Shore-hardness points or a viscosity of 1 to 100x 106 mPa.s (at 23 degrees C and 1013 mbar). The Shore hardness of the outer silicone matrix is greater than 10 Shore-hardness points. The inner silicone matrix consists of a silicone type with standard conditions. The difference between Shore hardness of inner silicone matrix and outside silicone matrix is 5 Shore-hardness points. Silicone oils or silicone gels are used for the inner silicone matrix. Room temperature vulcanizing-2 (RTV-2) silicone rubber, high temperature vulcanizing (HTV) silicone rubber or silicone hybrid polymers is used for the outer silicone matrix. The molded parts are present in the form of hoses, pipes, volumes, plates or mats. The luminous bodies are arranged within the silicone matrix in such a manner that the bodies illuminate the environment area in a constant and homogeneous manner. An INDEPENDENT CLAIM is included for a procedure for the production of molded silicone parts containing luminous bodies.