Information technology and audio-visual, multimedia and photographic devices; distribution amplifiers; power amplifiers; signal amplifiers; signal cables for IT, AV and telecommunication; cable connectors; apparatus, instruments and cables for electricity; static grounding systems and apparatus; apparatus and instruments for controlling electricity; control panels [electricity]; earthing apparatus; electric converters; electric current control devices; electric current switches; electric power distribution machines; electric switching apparatus; electric transformers; electrical adapters; electrical distributors; electrical power distribution blocks; electricity limiters; fault voltage breakers; overvoltage protectors; panels for the control of electricity; power adapters; power conditioners; power controllers; power distributors [electrical]; stage lighting regulators; voltage surge protectors; electrical and electronic components; adapter plugs; covers for electric outlets; distribution boxes for electrical power; electric connections; electric contacts; electric couplings; electric plugs; electric switches; electric wires and cables; electrical connection boxes; electrical connector housings; electrical connectors; electrical sockets; moveable sockets; multi-outlet socket blocks; plug adaptors; plug connectors; power connectors; power distributing boxes; electric cables and wires; connection cables; connections for electric lines; electric cables; electric extension cables; electronic cables; power cables; tags for identifying electric cables; measuring, detecting, monitoring and controlling devices; apparatus for measuring, monitoring and analyzing electricity consumption; measuring devices; electricity meters; electricity measuring instruments; current-meters; power meters; voltmeters; wattmeters; controllers and regulators; electric control devices for energy management; electrical controlling devices; lighting control apparatus