Audio-video receivers; Closed circuit TV systems for security and surveillance, namely, cameras, switchers, monitors, microphones, and recorders; Electrical plugs and sockets; Electron tubes; Electronic chips for the manufacture of integrated circuits; Headphones; Integrated circuits; Lasers, not for medical purposes; Light directors and photographic lighting tents, all for use with photographic lighting equipment for professional and high-end photography; Light emitting diodes (LEDs); Oculars; Optical fibres; Printed circuit boards; Rechargeable electric batteries; Remote control telemetering machines and apparatus; Resistance measuring instruments; Safety goggles; Semiconductors; Telecommunications equipment, namely, fiber-optic transceivers, fiber optic repeaters, converters and optimizers, wave division multiplexers, free-space optics transmission systems, switches including Ethernet switches and routers, fiber-to-the-home and ethernet-over-VDSL access aggregators, terminators and repeaters, and remote presence management products, namely, switches, and console, alarm, sensor and power management devices; Transformers; Triodes; Video projectors; Video screens; Electric control panels