electrical wires; electrical switch boxes; electrical switch boards; light switches; fittings for lights (switches); dimmer switches; light sensors; video intercom apparatus; alarms; electrical trunking installations; intercom apparatus; intercom key apparatus; guided wave intercoms; telephone intercom apparatus; monitor screens; video monitors; apparatus for lighting control; apparatus for controlling lighting; downloadable software applications (apps); computer software applications (downloadable); cases for smartphones; electrical sockets; sockets (electrical); relay sockets; plug sockets (electric); electrical sensors; electrical switches; electrical controls; electronic components; electronic switches; sensor switches; electric control boards; video surveillance cameras; electrical recorders; remotely controlled door locks; devices for use in the networking of computers; computer networking installations; communications networks; computer networking apparatus