Constructed of durable cast aluminium and sealed with gray powder coat paint. Easy to install, these units can be wired through the back of the bracket for electrical box mounting or through the threaded hole in the base for external 1/2 inch conduit connection. Each kit includes a bracket, plate and mounting screws. Easy installation, heavy-duty construction and a professional appearance make the brackets suitable for use in commercial, institution and industrial environments. These brackets are suitable for any type-3R application in ordinary (non division 1 or division 2) environments. The LCMB2 and LWMB2 mounting kits may be used with the following Federal Signal models 121S, 131ST, 131DST, 131C, 141(120V), 141ST, 225, 371, 371L, 371ST, 371DST, AV1, AV1ST, FB2PST and the FB24ST.