Computer software for use in controlling and simulating lighting in theaters, television and film studios, clubs, discos, stadiums, open air structures, and other multi-purpose entertainment venues; electric and electronic light switches; electric and electronic dimmers; electronic consoles for controlling lighting in theaters, television and film studios, clubs, discos, stadiums, open-air structures and other multi-purpose ventures; electronic devices for use in controlling lighting in theaters, television and film studios, clubs, discos, stadiums, open-air structures and other multi-purpose ventures; sequencers; encoders; keyboards; lighting controls; electric devices for focusing lighting apparatus; signal splitters for electronic apparatus; visualizers, namely, electrical devices for generating visual displays; signal splitters for electrical network devices; telecommunications and data networking hardware, namely, devices for transporting and converting data across multiple network infrastructures and communications protocols; communications network hubs; light sensors; computer hardware and software used to control audiovisual equipment; virtual visualization systems, namely, computer hardware and software used to generate visual displays; lighting controllers and automated lighting controllers for use in controlling lighting in theaters, television and film studios, clubs, discos, stadiums, open-air structures and other multi-purpose ventures; replacement parts for the foregoing goods