A daylight signal light is a navigational aid used on boats and ships to increase visibility during daylight hours. Unlike traditional lights designed for nighttime use, daylight signal lights are often brightly colored and may incorporate reflective materials to enhance visibility in daylight conditions. They are typically used in conjunction with other visual signaling methods, such as flags or semaphore, to communicate messages or intentions to nearby vessels or shore personnel. Daylight signal lights are an essential component of maritime safety protocols, helping to prevent collisions and facilitate effective communication on the waterways.