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  • Seachoice Portable Battery Operated Navigation Lights

    Seachoice Portable Battery Operated Navigation Lights

    Seachoice Portable Navigation Lights are offered in two mounting styles for both the bow and stern....

    In Stock 

    Price: $22.01
  • Attwood Anchor/Masthead Light

    Attwood Anchor/Masthead Light

    Attwood Anchor/Masthead Lights are mounted vertically or horizontally with an aluminum locking pole...

    In Stock 

    Price: $49.63 to $55.99
  • Sea-Dog Round Stainless Steel Combination Bow Light

    Sea-Dog Round Stainless Steel Combination Bow Light

    The Sea-Dog Round Combination Bow Light has classic styling. Compact, stainless steel housing with...

    In Stock 

    Price: $23.73
  • Sea-Dog LED Stainless Combination Bow Light

    Sea-Dog LED Stainless Combination Bow Light

    The Sea-Dog LED Combination Bow Light is a long lasting, high visibility option for port/starboard...

    In Stock 

    Price: $50.78 to $64.85
  • Aqua Signal Discovery Series 33 Navigation Light

    Aqua Signal Discovery Series 33 Navigation Light

    Aqua Signal LED sidelights and stern lights for vessels up to 65 feet. Discovery Series 33...

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    Price: $53.34 to $55.84
  • Attwood Quasar Bow Lights

    Attwood Quasar Bow Lights

    Attwood Quasar lights with non-snagging housings. For boats up to 65.6 feet. Horizontal deck mount....

    In Stock 

    Price: $22.41 to $26.03
  • Jabsco Flood/Spotlight

    Jabsco Flood/Spotlight

    Jabsco replacement bulbs for floodlights and spotlights feature a sealed beam design to lock out...

    In Stock 

    Price: $80.72 to $132.27
  • Perko Bow Light Horizontal Mount

    Perko Bow Light Horizontal Mount

    Chrome horizontal mount Perko Bow Light is certified for use on sail or power driven vessels under...

    In Stock 

    Price: $17.53
  • Aqua Signal Series 25 Navigation Lights

    Aqua Signal Series 25 Navigation Lights

    Aqua Signal Series 25 Classic Navigation Lights are designed for sailboat and powerboats up to 39...

    In Stock 

    Price: $14.14 to $85.03
  • LopoLight LED Navigation Lights for boats up to 65.6 ft (20m)

    LopoLight LED Navigation Lights for boats up to 65.6 ft (20m)

    LopoLight LED lights consume less than 30% of the electrical draw of a conventional incandescent lam...

    Price: $418.35 to $972.70
  • Sea-Dog LED Telescoping All Around Pole Light

    Sea-Dog LED Telescoping All Around Pole Light

    The LED Telescoping All Around Pole Light provides 2 nautical mile visibility, satisfying the...

    In Stock 

    Price: $64.05 to $66.17
  • Sea-Dog LED Rectangular Transom Light

    Sea-Dog LED Rectangular Transom Light

    The Sea-Dog LED Rectangular Transom Light provides 2 nautical miles of visibility in a 135 degree...

    In Stock 

    Price: $48.12
  • Sea-Dog Top Mount LED Side Light Set

    Sea-Dog Top Mount LED Side Light Set

    These top mount Sea-dog Port and Starboard Running Lights feature low amp draw LED technology and...

    In Stock 

    Price: $85.19
  • Attwood LED Stainless Steel Sidelights

    Attwood LED Stainless Steel Sidelights

    Attwood LED sidelights in bi-color bow, red port, and green starboard configurations in your choice...

    In Stock 

    Price: $37.86 to $45.90
  • Aqua Signal Series 30 12V All Around LED Fold Down Light

    Aqua Signal Series 30 12V All Around LED Fold Down Light

    The Aqua Signal LED fold down light provides highly visible, 360° bright white light that can be...

    Price: $160.27
  • Attwood All-Round LED Anti-Glare Fold Down Lights

    Attwood All-Round LED Anti-Glare Fold Down Lights

    12&quot Attwood All-Round LED Anti-Glare Fold Down Lights provide 2-mile, 360&deg...

    In Stock 

    Price: $45.21
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Boat Navigation Lights

Navigation lights are required on all boats underway or at anchor at night, from sunset to sunrise. Different types of boats will use specific combinations of nav lights in order to facilitate identification by other watercraft at night. Lighting requirements for pleasure craft varies by boat type and size. Generally speaking, marine navigation lights can be broken down into the following:

Sidelights: Red for the port side, and green for the starboard side. Sidelights must shine 22.5° abaft the beam and are always lit at night. Side lights may be combined into one housing as a bicolor light.

Tricolor Lights: Tricolor lights combine red and green sidelights and add a white stern light. They may be lit at night only when the boat is under sail. Tricolor lights are legal only on boats under 66 feet in length.

Sternlights: A white light mounted as close to the stern of the vessel as possible, the sternlight must shine through an arc of 135° and is always lit at night.

Masthead Lights: Also known as a Steaming Light or Bow Light, the Masthead light is white and only lit at night when the boat is under power. On sailboats, the masthead light is mounted approximately one third of the way down on the mast. On powerboats, the masthead light is sometimes mounted on a short spar or staff. The masthead light must be mounted above the sidelights. The masthead light must shine 22.5° abaft the beam on both sides so that it is visible to oncoming and overtaking vessels.

All-Round Lights: All-round lights shine through 360°. A White all-round light is is lit at night when the boat is at anchor.

Visibility range requirements (in nautical miles) vary by light type and boat size:
For Boats less than 39.4 ft. (12 meters) in length:

  • White, Red, Green All Round lamps, 2 miles
  • Masthead lamp, 2 miles
  • Port and Starboard lamps, 1 mile
  • Stern lamp, 2 miles
  • Tri-color lamp, 2 miles. (Sailing vessels under sail only)

Boats less than 65.6 ft. (20 meters) in length:

  • White, Red, Green All Round lamps, 2 miles
  • Masthead lamp, 3 miles
  • Port and Starboard lamps, 2 miles
  • Stern lamp, 2 miles
  • Tri-color lamp, 2 miles. (Sailing vessels under sail only)

Boats less than 164 Ft. (50 meters) in length:

  • White, Red, Green All Round lamps, 2 miles
  • Masthead lamp, 5 miles
  • Port and Starboard lamps, 2 miles
  • Stern lamp, 2 miles

LED vs Conventional Lighting

LED Navigation lighting is increasingly popular. LEDs consume less power and have longer services lives. Although service rating varies by manufacturer, a typical service life of 50,000 to 100,000 hours is touted by most. Longer life means fewer bulb replacements. LEDs can run on 12 and 24 volt systems without modification, run cooler, are highly shock and vibration resistan, and exceeds USCG requirements and ABCY A-16 certification. Standard incandescent navigation lights remain a popular and viable option for many boaters. Less expensive than LED lighting, there is a wider variety of models and styles available with standard bulbs.

Portable Navigation Lights are designed for boats under 23 feet in length and for boats without electrical systems. These portable light systems are typically powered by D-Cell or AA batteries. Portable lights resemble flashlights in appearance. and are available with LED or Krypton bulbs. Configurations include suction cup mounts, C-clamp mounts or glue-on mounts for inflatable boats.

Non-Navigation Exterior Lighting

Remote Control Searchlights are installed on larger craft can serve as a nighttime piloting aid and as an emergency signal when needed. Some models can be directed by a wireless remote control. A hand held searchlight on smaller craft may also serve the same functions. These lights typically feature high power halogen bulbs that provide candlepower ratings from 100,000 cp to 3,000,000 cp.

Deck Floodlights add a large margin of safety when crew members are working on deck at night. Available with sealed beam bulbs, halogen bulbs and low power LED bulb construction.

Spreader Lights are similar in size and function to deck floodlights but are optimized for use on sailboats. Deck illumination is an important safety concern for nighttime sailing. Available with sealed beam bulbs, halogen bulbs and low power LED bulb construction.

Underwater lights are designed to be submerged and illuminate the waters below the hull. Popular for night time fishing expeditions due to their fish attraction qualities, underwater lighting systems are suitable for offshore use, night diving, or as colorful accent lighting at the dock. Mounting requires either a 2" diameter hole in the hull (thru hull style) or surface mounting with a smaller hole for wiring and screws.

Underwater lights are offered in thru-hull styles (requiring a 2" diameter hole in the hull), and surface mount configurations (requires a smaller hole for wiring and mounting screws).

Additional Navigation Lighting Resources

The Chapman Book of Piloting and Seamanship is the essential guide for power and sail boaters. It contains an extensive chapter on navigation lights, rules, regulations and how to interpret running lights.

Understanding the Rules of the Road by Paul Boissier, offers a dynamic approach to collision avoidance, as well as explaining standard lights, shape and sound signals vessels use to communicate with each other.

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