161.013-3—General performance requirements.
(a)
Each electric light must:
(1)
Emit a white light which meets the intensity requirements of § 161.013-5 ;
(2)
Be capable of automatic signaling in a manner which meets the requirements of § 161.013-7 ;
(3)
Contain an independent power source which meets the requirements of § 161.013-9 ;
(4)
Float in fresh water with the lens surface at or above the surface of the water;
(5)
Be equipped with a waterproof switch; and
(6)
Meet the requirement of paragraphs (a) (1) through (4) of this section after floating for at least 72 hours followed by submersion in 5% by weight sodium chloride solution for at least 2 hours.
(b)
The electric light may not be equipped with a switch mechanism which permits continuous display of a beam of light except that the light may be equipped with a switch which returns to the off position when pressure is released.