Apparatus for testing electrical components; apparatus for testing electrical devices; ballasts for electrical lighting fittings; blanking plates adapted for electrical connections; connections for electrical purposes; connectors being electrical terminals; connectors for joining electrical wires; couplings for electrical cables; ducts for housing electrical wires; electrical cable; electrical cable apparatus; electrical cable connectors; electrical cables for lighting installations; electrical cabling; electrical checking apparatus; electrical circuit boards; electrical circuit breakers; electrical circuit components; electrical circuit control devices; electrical circuit testers; electrical conductors; electrical conduits; electrical connecting cables; electrical connecting terminal blocks; electrical connectors; electrical connectors for electrical cables; electrical control units for lighting installations; electrical couplings; electrical distribution boxes; electrical distribution frames; electrical extension leads; electrical junction boxes; electrical leads; electrical meters; electrical plugs; electrical push button switch assemblies; electrical push button switches; electrical push buttons being luminous; electrical push switches; electrical safety cut-out fuses; electrical sockets; electrical surge arrestors; electrical switch assemblies; electrical switch boards; electrical switch boxes; electrical switch cabinets; electrical switch timers; electrical switches; electrical switchgear; electrical time switches; electrical tracks for lights; electrical transformers; electrical transformers for use with lighting; electricity boxes for electrical installations; extension leads for electrical apparatus; female connectors for electrical cables; insulated electrical cables; insulated electrical wires; junction boxes for electrical circuits; junction boxes for electrical purposes; male connectors for electrical cables; plug-in electrical connectors; sockets (electrical); sockets for electric plugs for use on domestic electrical apparatus; suppressors for electrical appliances; terminal boxes (electrical); terminals (connectors) for electrical wiring; timers for switching on electrical devices at pre-programmed times