2.2.3.1 Each lifejacket light shall:
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.1 have a luminous intensity of not less than
0.75 cd in all directions of the upper hemisphere;
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.2 have a source of energy capable of providing
a luminous intensity of 0.75 cd for a period of at least 8 h;
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.3 be visible over as great a segment of the upper
hemisphere as is practicable when attached to a lifejacket; and
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.4 be of white colour.
2.2.3.2 If the light referred to in paragraph
2.2.3.1 is a flashing light, it shall, in addition: