Designed for flush-mounting ceiling installation. It features 6.5’’ speaker. This speaker has been developed for excellent audio quality and is suited for alarm message diffusion. The supporting structure is in steel and it has a flame resistant cover in iron. These features, together with ceramic wiring clamps, thermal fuse, heat resistant internal wiring and earth wiring make this speaker suitable for installations where strict fire prevention regulations must be followed. Compliance BS 5839-8- EN54 -24. Power 12/6/3W 100V.