Apparatus for lighting; apparatus for lighting buildings; apparatus for lighting displays; apparatus for lighting powered by electricity; apparatus for lighting public events; electric apparatus for lighting; electric lighting apparatus; electric lighting fittings; electric lighting installations; electric lighting installations for exterior use; electric lighting installations for interior use; electrical apparatus for lighting; electrical installations for lighting; electrical lighting fixtures; electrical lighting fixtures for use in hazardous locations; indoor electrical lighting fixtures; installations for electric lighting; installations for lighting; LED lighting apparatus; lighting apparatus and installations; lighting apparatus for architecture; lighting apparatus for commercial use; lighting apparatus for industrial use; lighting apparatus for the stage; lighting apparatus utilising light emitting diodes (LEDs); lighting fixtures; lighting fixtures for commercial use; lighting installations; security lighting apparatus incorporating a passive infra-red detector; security lighting incorporating an infra-red activated sensor; security lighting installations incorporating a passive infra-red detector