11 Photovoltaic installations and systems together with parts thereof included in this class; Solar collectors and assemblies thereof; Glass components with integrated solar cells as solar collectors; Installations for heating water by means of sunrays (solar collectors), low-energy consumption light fittings, installations for transporting light to the interior of a building by means of a mirrored tube (light tube conduct), vehicle headlights; Photovoltaic installations and systems, solar installations and systems, solar thermic installations and systems and parts thereof, consisting substantially of solar modules, solar cells and/or inverters; Solar glass for apparatus for water heating and/or heating using solar energy, namely, solar absorbers for use in swimming pools and thermal syphon systems; solar roofs (solar collectors); solar absorbers (parts of solar collectors), solar selective layers for heating (parts of solar collectors); solar boilers; heat exchangers; reflectors for sunlight, in particular mirrors and CPC (compound parabolic concentrators) reflectors; apparatus and systems for converting and storing sunlight by means of physical, biological, or chemical methods for heating purposes and/or water heating (included in this class), in particular hybrid solar collectors for generating heat (included in this class); heat accumulators, steam accumulators, sorption storage tank accumulators (heat accumulators); Solar glass for Apparatus for heating, in particular those comprising solar technology apparatus and/or heat pumps; solar collectors (heating, cooling, water heating), in particular flat collectors, vacuum tube collectors, storage collectors as well as installations consisting of such apparatus; apparatus for steam generating, cooking, drying and ventilating; apparatus for water heating and/or heating using solar energy, namely, solar absorbers for use in swimming pools and thermal siphon systems; solar roofs (solar collectors); apparatus and systems for converting and storing sunlight by means of physical, biological, or chemical methods for heating purposes and/or water heating and parts thereof (included in this class), in particular solar absorbers (parts of solar collectors), solar selective layers for heating (parts of solar collectors); solar boilers; heat exchangers; reflectors for sunlight, in particular mirrors and CPC (compound parabolic concentrators) reflectors; air conditioning and ventilating apparatus; apparatus for heat recovery, in particular consisting of ventilating systems with incorporated waste air heat exchanger