46 C.F.R. § 112.39-3
Operation
(a) The lanterns must be capable of providing light for at least 3 hours.
(b) The lantern must be relay-controlled so that the loss of normal power causes the lanterns to light.
(a) The lanterns must be capable of providing light for at least 3 hours.
(b) The lantern must be relay-controlled so that the loss of normal power causes the lanterns to light.