9 [ Measuring, regulating, signaling, checking and supervision apparatus and instruments, namely, lasers for measuring purposes, voltage regulators, rotating lights; ] devices for recording, processing, transmitting and reproducing sound, images, data and light effects, namely, apparatus for recording, transmission or reproduction of sound and images; electrical and electronic apparatus and systems for controlling light signals, light effects and light shows, namely, electric control panels, electrical controllers, electrical controlling devices; electrical and electronic control units consisting primarily of electric control panels, electrical controllers, electrical controlling devices and electrical and electronic control devices for lighting systems, spot lights, lights and dimmers; light control desks and consoles consisting primarily of electric control panels, electrical controllers, electrical controlling devices; [ light regulators, namely, digital dimmers; ] electrical and electronic apparatus and systems for processing, amplifying, duplicating, mixing, converting and transmitting control data and control signals, namely, data processors, sound mixers, wireless transmitters and receivers; regulators for stage lighting, namely, illumination regulators; [ power supply units consisting primarily of power supplies, inverters for power supply, electrical power connectors; power distributors, namely, electrical power distribution blocks, electricity distribution consoles, distribution transformers; electricity current limiters for lighting apparatus; electrified rails for spot lights, namely, electric conductor rails; ] data processing devices, namely, data processing apparatus, data processors and computers; recorded computer software for controlling light signals, light effects and light shows; recorded computer software for visualizing stage shows and for creating three-dimensional stage layouts