If you have ever been on the water at night and wondered if the marine navigation lights you see are from an approaching or fleeing vessel, or if the vessel is a fishing trawler or super tanker, then LIGHTRule™ is for you. This simple-to-use vessel identification tool is inexpensive security for night travel and should be an essential part of the equipment found on any boat. LIGHTRule™ is also an excellent aide for navigation classes and Coast Guard exams. Click on the Documents tab on the left to see a high resolution view of the LIGHTRule™.

• Identifies all COLREGS
• Displays 60 light configurations
• Displays 15 day shapes
• Actual view of vessel for port, starboard, bow & stern lights
• Visual guide for horn signals
• Magnifying lens for clear readability of definitions
• Durable plastic construction
• Lifetime warranty