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2. Vega Industries - Wikipedia

   en.wikipedia.org/wiki/Vega_Industries

   Vega Industries Limited is a company in Porirua, New Zealand, which manufactures specialised navigation and signal lights for use in transportation industries, primarily marine navigation. Vega has been in business since 1972 when it built a marine guidance system based on a design by Norman Rumsey. [1]

3. Navigation light - Wikipedia

   en.wikipedia.org/wiki/Navigation_light

   Watercraft navigation lights must permit other vessels to determine the type and relative angle of a vessel, and thus decide if there is a danger of collision. In general, sailing vessels are required to carry a green light that shines from dead ahead to 2 points (22 + 1 ⁄ 2 °) abaft [note 1] the beam on the starboard side (the right side from the perspective of someone on board facing ...

4. PEL sector light - Wikipedia

   en.wikipedia.org/wiki/PEL_sector_light

   A large PEL sector light installation at the Port of Durban Original Porirua Harbour PEL The PEL sector light is a projector style marine beacon which is used to guide maritime vessels. It does this by projecting a colored sector out to sea with very sharp color changes as the mariner transitions from one sector to the next.

5. Day shapes - Wikipedia

   en.wikipedia.org/wiki/Day_shapes

   The appropriate lights may also be displayed during the day at times of restricted visibility or other necessary circumstances. [3] Vessels under 7 meters are generally not required to display day shapes even if they are required to display lights at night. [4] A square black flag displayed over the ball may be used as a distress signal. [5]

6. Sector light - Wikipedia

   en.wikipedia.org/wiki/Sector_light

   A sector light is a man-made pilotage and position fixing aid that consists of strictly delineated horizontal angle light beams to guide water-borne traffic through a safe channel at night in reasonable visibility. Sector lights are most often used for safe passage through shallow or dangerous waters.

7. Light characteristic - Wikipedia

   en.wikipedia.org/wiki/Light_characteristic

   A Morse code light is light in which appearances of light of two clearly different durations (dots and dashes) are grouped to represent a character or characters in the Morse Code. For example, "Mo(A)" is a light in which in each period light is shown for a short period (dot) followed by a long period (dash), the Morse Code for "A".