Supply Of Q-series Led Ecr Universal Type I.e. Qecx-61, 4f/4b Complete With Plug Board Base Plate Connectors, Retaining Clips Etc And Conforming To Brs 94 1a Sts/e/relay/ac Lit Led Signal/09-2002 Amdt -1 And Rdso Specn.no.irs: S-34 & S-23 With Amdt Upto Date As Applicable Or Latest..