solar powered LED light, flashing at 30 times per minute. For warning ... engineering and providing aids to marine navigation(AtoN) lights to port, harbor, lighting house authorities, private ports,marine coastal guards,offshore ... 13) manual switch 14)Extremely Reliable and cost saving Speficiations: Light CharacteristicsIntensity25cdVisible Range>3.5nmAvailable colorsRed, amber, green, blue, white, ...