LED Bulbs Design: Adopt LED bulbs, 360° irradiation angle, maximum viewing distance of 1 nautical miles. Widely used in ships, yachts, and so on. External Power Control: Adopt external power control, easy to install. Suitable for hull less than 12m / 13.1yd, meet the needs of most individual vessels. Manufacturing Material: The base is made of 316 stainless steel, aluminum rod and PC materials, which can be used for a long time. Diverse Features: DC 12V‑24V voltage, ‑20 ~ +45℃ storage and operating temperature, IP66 protection level, 360° irradiation angle, 5W rated power. Waterproof Grade: IP66 waterproof grade, the navigation lamp can improve the waterproof performance and adapt to all kinds of outdoor weather.