1Stable Base: The boat stern light features a stainless steel base and aluminum pole, providing stability even in rough seas, without the worry of the base breaking. 2High Performance: The navigation light is made with a 316 stainless steel base, rust resistant aluminum pole, and Pc lamp shade, allowing for long term use in high humidity environments. 3Clear Visibility: With 33 LED lamp beads, the anchor light offers visibility of over 2 nautical miles, operating on a 12?24V wide voltage range, making it suitable for use in marine environments. 4Waterproof Design: The anchor light with a waterproof ring can completely prevent dust from entering and can withstand the impact of violent waves or strong water mist. 5Versatile Application: The stern light provides 360 degree lighting to improve the safety of boating at night and is suitable for yachts, speedboats, and various other watercraft.