IZAR, a compact emergency lamp 46mm in diameter, made in aluminium and synthetic materials, with two parts: the optical group (visible) and the electronics (hidden in the ceiling). The lamp has two different finishes for the optical group to light evacuation routes or open spaces, with the aim of complying with normative requirements and increasing the luminous efficiency of the building's project. In the event of a power cut, the lamp has a backup power supply consisting of Ni-Mh batteries, incorporating a pulse-load micro processing system which permits an important reduction in energy consumption.