Abstract: A signaling or emergency light-emitting device comprises a shell (1) that is made of a watertight transparent material and is provided with a crush resistant structure, containing a LED illumination circuit which is provided with a battery (16) rechargeable through a coil (19) that can be linked in its magnetic flux with an inductive power source, with a microprocessor (22) and a radiofrequency transceiver (23). The shell (1) comprises a base (5) and a cover (6) that are joined together by means of a series of fixing screws (10), a seal (2) that extends radially and enlarges the rest surface for the base (5) is interposed peripherally between the base (5) and the cover (6).