Navilight Tricolor 2NM with Scotty BaseNavilight Tricolor Scotty 2NM - US Coast Guard approved for 2 nautical miles is fully compatible with the Scotty Deck Mounting system and includes a green light to be shown at the starboard side and a red light to be shown at the port side. In addition, it includes the white Sternlight, to be used at the stern. It is battery operated, uses super bright LED light, is water proof and floats.The green as well as the red lights show an unbroken light over an arc of the horizon of 112,5 degrees. The white Sternlight shows an unbroken light over an arc of the horizon of 135 degrees. All lights work independently, in a combination of all three or red/green together.Examples of usage, based on the Convention on the International Regulations for Preventing Collisions at Sea, commonly called 72 COLREGs.On a power-driven vessel of 12 meters or more in length but less than 50 meters in length: As green or red sidelight As sternlight On a power-driven vessel of less than 12 meters in length: As green or red sidelight As combined green/red As sternlight On a sailing vessel underway: As green or red sidelight As sternlight On a sailing vessel of less than 20 meters in lengths as backup light:TriColor lantern at or near the top of the mastSpecifications: USCG Approval, 2 Nautical Miles 5 Modes: Tricolor Masthead light (135Adeg white, 112,5Adeg red, 112,5Adeg green), BiColor side light, red side light, green side light, white Sternlight Floatable, waterproof (20 m) and air-tight For use with Scotty Flush Deck Mounting system Powered by three AAA batteries (not included) Size: H = 85 mm, O = 68 mm Weight (net): 91 g Modes/Approximate Burn Time 16 green/red/white LED, 360Adeg Tricolor lantern/12hrs 10 green/red LED, 225Adeg Bi-Color sidelight/20hrs 5 green or 5 red LED, 112,5Adeg sidelight/38hrs 6 white LED, 135Adeg Sternlight/32hrs Mounting System:The Navilight Tricolor Scotty is designed to fit into the Scotty Deck Mounting system (Side/Deck Mounts, Flush Mounts) and requires no additional adapters. Specifications: LED: Yes Housing: Black Voltage - Input Range (Volts): 3 AAA Batteries (Not Included) Visible Range (Miles): 2nm Lens Color: White/Red/Green Box Dimensions: 3"H x 4"W x 6"L WT: 0.3 lbs UPC: 814154018817