9 Surveying, photographic, recording, signaling, checking and supervision instruments, namely, Ethernet switches, Ethernet transceivers, Ethernet repeaters, Ethernet nodes, Ethernet controllers, Ethernet cables, Ethernet adapters, signal splitters for electronic apparatus, wireless signal splitters for electronic apparatus, communication hubs, transmitters of electronic signals, wireless transmitters and receivers, receivers of electronic signals, data signal splitters for electronic apparatus and data signal distribution devices; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, digital multiplex (DMX) recording and replay units in the nature of apparatus for recording and replaying of signals for controlling lighting displays, electric light dimmers, digital multiplex (DMX) mergers in the nature of apparatus for merging lighting control signals, sine wave dimmers in the nature of apparatus for controlling output voltage, sine wave dimmer racks in the nature of apparatus for controlling output voltage; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, electric light dimmers, voltage testers, amperage testers, circuit testers, electrical outlet testers, battery testers, electric cable testers, digital multiplex (DMX) testers in the nature of instruments for testing electrical signals used in lighting sequences, measurement and test equipment for measuring and testing electrical signals used in architecture, entertainment, film and TV lighting and installations, remote device management (RDM) controllers in the nature of apparatus for controlling electrical signals to lighting installations and systems, electrical power distribution units, power distributing boxes, electrical power distribution blocks, power distribution panels, power stabilizers, voltage stabilizers, voltage stabilizing power supply, frequency stabilizers, power line conditioners, inverters, power inverters; all the aforesaid goods being made in Switzerland in accordance with specific standards