9 Electric converters and electric voltage transformers; power sources, in particular inverter power sources being inverters; frequency transformers; plasma welding power sources in the nature of inverters; photovoltaic systems comprised of photovoltaic cells and modules; electric controllers for handling devices for robots; electric controls for microprocessors for use with electric converters, with electric voltage transformers, with power sources, in particular inverter power sources being inverters, with frequency transformers, with plasma welding power sources in the nature of inverters, with photovoltaic systems comprised of photovoltaic cells and modules, with electric traction drives for vehicles, and with electric controllers for handling devices for robots; chargers for electric batteries; accumulators for photovoltaic power; energy regulators being voltage regulators; heat regulating apparatus, namely, temperature controllers for household and industrial use; electric batteries and charging stations for electric vehicles; fuel cells; energy converters, primarily comprising of electrical transformers, inverters, solar Inverters and also containing measuring and controlling devices; electric power distribution units; energy supply installations and systems, namely, radio frequency generators for supplying radio-frequency energy; downloadable computer software for configuration, control and evaluation of plasma surface treatment products; downloadable computer software for use with accessing information on data carriers; downloadable computer software for configuration, control and evaluation of solar inverter products; downloadable software in form of a mobile application for configuration, control and evaluation of plasma surface treatment products, and for configuration, control and evaluation of solar inverter products; downloadable mobile applications for configuration, control and evaluation of plasma surface treatment products, and for configuration, control and evaluation of solar inverter products; downloadable application software for social networking services via internet; downloadable communication software for the electronic exchange of data, sound, videos, images and graphics via computer networks, mobile networks, wireless networks and communication networks; downloadable community software for use in accessing virtual social networks; downloadable computer software for configuration, control and evaluation of welding and cutting apparatus; downloadable simulation software for simulation apparatus and instruments for use in simulation and training of welding processes; welding masks; welding helmets; downloadable 3D computer graphics software; downloadable augmented reality software for simulation and training of welding processes; downloadable industrial automation software