9 Scientific, surveying, optical, weighing, measuring, signalling, checking (supervision) instruments as well as life-saving apparatus and equipment; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity; data processing equipment; computer, computer software, photovoltaic devices for generating electricity, in particular photovoltaic modules and installations made therefrom; lightning conductors; voltage surge protectors; computer programs for the planning and project management of photovoltaic installations as well as for calculating their energy yields; photovoltaic solar modules; photovoltaic devices and installations for generating solar electricity, solar battery chargers; solar energy collectors for electricity generation; [electric] solar cells; solar panels; solar panels for generating electricity; portable solar panels for generating electricity.