Light signals are forms of communication that use light to convey information. They can be seen in various applications, such as traffic lights, where different colors indicate whether to stop, proceed, or prepare to stop. Light signals can also be used in technology, like fiber optic cables, which transmit data as pulses of light over long distances. In addition to traffic systems, light signals are essential in maritime navigation. Lighthouses use powerful beams of light to guide ships safely to shore, while buoys may flash lights to indicate their position. These signals help prevent accidents and ensure safe travel on water and land.