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 228x228 mm. Suitable for ceiling mounting. It has an LED light source that can be turned on/off as desired with an independent input (LUM input). The same light source will provide lighting for a certain amount of time if the Mains voltage fails. Complies with requirements of the Portuguese regulations (Regras Técnicas das Instalações Elétricas de Baixa Tensão 801.2.1.5.3.1.6). Minimum luminous flux 60 lm.