Up arrow wall mounted 4w LED emergency exit box comes in maintained function as standard. This can be converted to non maintained if required by removing the switch live link. The specifications are 240v AC 50Hz, 27 LED, 16 lumen (AC) 25 lumen (DC), IP20 rated, life expectancy 6 years in maintained mode. The fitting is made of a steel base and polycarbonate diffuser / legend. Battery supplied is a 3.6v 1.5ah NiCad 3 cell battery which can be recharged. Dimensions: L390mm x H190mm x D60mm.