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Types of marine light

TYPES OF MARINE WARNING LIGHT

According to the type and location of the structure marine warning light's visibility are determined by IALA provisions. Lights nautical miles visibility terms are categorized as follows;

                 NIGHT

•    1,5NM nautical miles, light intensity 5700 candela
•    2NM nautical miles, light intensity 8900 candela
•    2,5NM nautical miles, light intensity of 14,000 candela
•    3nM nautical miles, light intensity of 21,000 candela
•    3,5NM nautical miles, light intensity of 32,000 candela
•    4nm nautical miles, light intensity of 49,000 candela
•    4,5NM nautical miles, light intensity of 73,000 candela
•    5 NM nautical miles, light intensity 110,000 candela
•    6NM nautical miles, light intensity of 160,000 candela
•    7 nm nm, the light intensity of 240,000 candela
•    8Nm nautical miles, light intensity 360000 candela
•    9NM nautical miles, light intensity 520000 candela
•    10nm nautical miles, light intensity of 770,000 candela
•    11NM nautical miles, light intensity 1.1 million candela


DAY

•    1 NM nautical miles, light intensity 4600 candela
•    2NM nautical miles, light intensity of 25,000 candela
•    3nM nautical miles, light intensity of 75,000 candela
•    4nm nautical miles, light intensity 182,000 candela
•    5 NM nautical miles, light intensity of 383,000 candela
•    6NM nautical miles, light intensity 745,000 candela
•    7 nm nm, the light intensity of 1.4 million candela
•    8Nm nautical miles, light intensity 2.4 million candela
•    9NM nautical miles, light intensity 4.1 million candela
•    10nm nautical miles, light intensity 6.9 million candela


Lights have been identified in four main colors in terms of visibility; White, red, green and yellow
•    Colors to be used should be limited with, white, yellow, black, red, green, and blue.
•    For the certain visibility for eye, cadmium orange, fluorescent red, yellow, green and orange colors can be used

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International Civil Aviation Organization FAA SHGM IALA