LED Bulbs Design: The marine lamp using LED bulbs as light source, the maximum visual distance is 2 nautical miles. Widely used in ships, yachts, etc. 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: Made of high quality PA engineering material base and PC lampshade material, the protection grade is IP66, durable, which can be used for a long time. Diverse Features: DC 12V24V voltage, 20 ~ +45 storage and operating temperature, IP66 protection level, provides 360 irradiation angle. Simple Operation: Simple to operate, easy to use, easy to install and disassemble. Without any difficult requirements even though you use it for the first time. Specification: Item Type: 360 Degree All Round Boat Light Weight: Approx.113g / 4.0oz Material: PA Engineering Material Base +PC Lampshade Color Temperature: White Light Rated Power: 5W Irradiation Angle: 360 Luminous Type: Steady On Maximum Viewing Distance: > 2NM (2 Nautical Miles) Applicable Hull Scope: Less Than Approx.12m / 13.1yd Voltage: DC12V - 24V Start Mode: External Power Supply Control Light Source: LED Storage And Operating Temperature: -20 ~ +45 Installation: Screw Installation Protection Level: IP66 Diameter: Approx.5.3cm / 2.1in Height: Approx.7cm / 2.8in