V16 is the official name given in Spain to warner beacon light. The driver can place it on the roof without getting out of the vehicle and immediately become visible in the event of an accident or breakdown.[1]
The use of warner light beacons came into force on July 1, 2021, and both the warning triangle and conventional V16 lights can be used until January 2026. After that date, the only legal form of warning device that can be used in Spain is the V16 beacon light that has integrated geolocation and connected to the DGT 3.0 cloud.[2][3]