Self-contained luminaire for double-sided backlit signalling with very high uniformity. Comprised of one profile and frame extruded in synthetic material, optic group via LGP plate with laser marking for optimum internal reflection. Doble-sided light output requiring the selection of two emergency signs or opaque sheet if informing on only one-side is desired (see accessories). Dimensions of the sign 228x114 mm. Suitable for ceiling mounting. It has a normally-off LED light source, which provides lighting during a certain amount of time when the Mains voltage fails. Can simulate a normal power fault using a remote control order (inlet TELEM).