Computer installations (networks); Components for electrical installations

Electrical installations for lighting

Communication devices for linking computer networks; Computer apparatus for use with computer networks; Computer network apparatus; Computer network installations; Computer network operating installations; Computer networking apparatus; Computer networking installations; Computer networks; Computer networks for the communication of data; Computer networks for the processing of data; Computer networks for the storage of data; Computer programs relating to computer networks; Installations for use in forming computer networks; Linked computer networks

Electrical apparatus installation; Electrical apparatus repair; Electrical engineering services (construction); Electrical installation services; Electrical wiring services; Maintenance and repair of electrical apparatus; Maintenance, installation and repair of electrical items and equipment; Residential, commercial and industrial installation and repair of electrical and computer wiring and cabling