light warning device and indication of an emergency exit

- light device warning and indication of an emergency exit. - The device (1 A) comprises a luminous indicator (2A) for indicating the emergency exit and can be brought into at least one of two different states, a sleep state, wherein it emits a first luminous radiation which is continuous and which exhibits a first intensity, and an alert state in which it emits a second luminous radiation which is discontinuous and which exhibits a second intensity greater than said first intensity, and control means (3A) for controlling said luminous indicator (2A) so as to bring it in said standby state, in a normal situation, and in said alert state, during an emergency evacuation by said emergency exit is passable.