Scientific, photographic, cinematographic, optical, weighing, measuring, signalling, inspecting, and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable media, computer software, blank digital or analogue recording and storage media; multimedia equipment; electrical and electronic control apparatus and devices for regulating and controlling lighting; electrical and electronic control apparatus for use with apparatus or installations for regulating and controlling lighting; lighting regulators for events, public spaces and buildings; electrical and electronic control apparatus and devices for regulating and controlling lighting in accordance with the digital multiplexing (dmx) protocol; computer software for regulating and controlling lighting, particularly in accordance with the digital multiplexing (dmx) protocol; stage lighting controllers; data transmission equipment and parts thereof; data distribution systems for lighting, audio and video applications; switches and electric plugs; power converters; magnetic data carriers, disc-shaped sound carriers; compact discs, dvds and other digital media; switches for transmitting audio, video, lighting and digital signals; signal splitters; data processing equipment and computers; software; computer software for use in network management and operations; software application for monitoring, planning, controlling and adapting networks for the transmission of data including video, audio and light; software programs for controlling and executing video, audio and light; communication and network software; software as a tool for network design and planning; control equipment for network management; boxes, panels and devices (apparatus) for electrical connection, coupling and hook-up; electric power supplies; electric transformers; electric relays; electric couplings; coaxial cables; electric cables and wires, namely, audio speaker cables, microphone cables, patch cables, dmx cables, electrical power extension cords, computer cables, hdmi cables, and usb cables.