1Wide Use: Marine sailing signal light has a wide range of applications and is suitable for yachts, ships, and can be used as signal lights, warning lights, etc. 2Sturdy and Stylish: This navigation light is made of high grade material, featuring sturdiness and durability, able to withstand all kinds of harsh environments at sea. Meanwhile, its smoother design makes its appearance more beautiful and can effectively improve the visibility and safety of the vessel. 3Dual Color: This light has two colors, red and green, and is specifically designed to be used as a signal light for boats. Red for port and green for right side of the ship, this two color combination allows other vessels to clearly identify the direction and location of the vessel's travel. 4Suitable for Boats up to 65.6ft (20m): The light has a 2 mile lighting effect, which means that both small and medium sized boats can use the light as navigation and warning lamps to improve the safety of their vessels. 5High Brightness: The angle of individual light emitting colours is 112.5 degrees for a total of 225 degrees. This design allows the light to illuminate the surrounding environment over a wider range of angles, providing better navigational guidance and warning.