Deck Mount LED Navigation Lights, 2 Nautical Miles Visibility

Navigation lights are not optional equipment — they are a legal requirement and a fundamental safety system that makes your vessel visible to other boats, ships, and commercial traffic in darkness, reduced visibility, and restricted conditions. Choosing the right navigation lights means choosing lights that meet the applicable regulatory standards for your vessel, that are built to survive continuous exposure to the marine environment, and that will perform reliably the one time per season — or per voyage — when being seen is the difference between a safe night passage and a collision. West Marine Deck Mount LED Navigation Lights are engineered to meet that standard: fully certified to USCG, ABYC, and COLREG requirements, built with IP66-rated waterproof construction, and designed for straightforward deck installation on vessels up to 20 meters.

Regulatory Compliance — What the Certifications Actually Mean.
Navigation light regulations are not suggestions — they are codified in federal law (33 CFR Part 183 for US inland waters) and international treaty (COLREG 72 for international waters). Operating a vessel after dark or in restricted visibility without properly certified navigation lights exposes the skipper to Coast Guard citation, liability in the event of a collision, and — most importantly — the genuine risk of not being seen by other vessels. The West Marine Deck Mount LED Navigation Lights carry the three certifications required for full regulatory compliance:

• USCG 2NM: Meets US Coast Guard requirements for 2 nautical mile minimum visibility, the standard applicable to vessels from 12 to 20 meters (approximately 39 to 65 feet) in length. Vessels under 12 meters have a lower minimum requirement; meeting the 2NM standard provides a margin of safety for smaller vessels as well.
• ABYC A-16:2016: Complies with the American Boat and Yacht Council standard A-16, the recognized voluntary industry standard for marine electrical systems and navigation light performance. ABYC compliance indicates the lights have been evaluated against a comprehensive technical standard that addresses photometric performance, durability, and electrical safety.
• IMO COLREG 72: Complies with the International Maritime Organization's International Regulations for Preventing Collisions at Sea (1972), the globally recognized standard governing vessel navigation lights on international waters. COLREG compliance is required for any vessel operating beyond US inland waters — coastal passages, offshore voyages, or international cruising.

Together, these three certifications confirm that the West Marine Deck Mount LED Navigation Lights are compliant for recreational vessel use in virtually any operating environment — US inland waters, coastal passages, and international voyages.

Red/Green Pair — Port and Starboard Sidelights Defined.
The set includes one red light (port — left side) and one green light (starboard — right side), providing the sidelight pair required by COLREG and USCG regulations for powered and sailing vessels underway. Sidelights communicate your vessel's orientation and direction of travel to approaching vessels, allowing them to determine whether a risk of collision exists and what action, if any, is required under the Rules of the Road. The 112.5° arc of visibility for each light is the exact arc specified by COLREG Rule 21 for sidelights — covering from dead ahead to 22.5° abaft the beam on each respective side. Together, the port and starboard lights provide a combined forward arc of 225°, correctly defining the vessel's aspect across the full required coverage zone.

2 Nautical Mile Visibility — Meeting and Exceeding Minimum Requirements.
Each light in the pair provides a minimum 2 nautical mile visibility range — the USCG and COLREG standard for vessels in the 12–20 meter length range. For vessels under 12 meters, where only 1 nautical mile is technically required, these lights provide double the minimum required visibility, significantly improving the margin of safety for being seen by approaching vessels, commercial traffic, and large ships whose watch officers may be scanning a wide horizon from an elevated bridge.

LED Technology — Efficiency, Longevity, and Reliability.
These navigation lights use LED light sources rather than traditional incandescent or halogen bulbs. The advantages of LED technology in this application are substantial and directly relevant to the marine boater:

• Exceptional Lifespan: LED light sources are rated for tens of thousands of operating hours — effectively eliminating the bulb replacement cycles that conventional navigation lights require. For navigation lights that may be used infrequently but must be reliable every time, LED longevity is a meaningful operational advantage.
• Low Power Consumption: LEDs draw a fraction of the current of equivalent incandescent navigation lights, reducing the drain on the vessel's battery system during night passages and reducing the load on the electrical system during extended offshore voyages when charging opportunities may be limited.
• Instant-On Performance: LEDs reach full brightness immediately with no warm-up period — the light you see at switch-on is the light the other vessel sees, at full intensity, immediately.
• Vibration Resistance: LED light sources have no fragile filament to break under engine vibration or wave impact — a meaningful durability advantage over incandescent bulbs in the marine environment.

IP66 Water Resistance Rating — Understanding What It Means.
The IP66 rating is an internationally standardized measure of a sealed enclosure's protection against solid particle ingress and water ingress, defined by IEC standard 60529. The two digits communicate specific protection levels:

• First digit (6): Dust-tight — complete protection against contact with dust and foreign solid particles. The highest rating on the dust protection scale.
• Second digit (6): Protected against powerful water jets — the enclosure withstands direct high-pressure water jets from any direction without water ingress. In practical marine terms, IP66 means these lights will not be compromised by spray, rain, breaking waves over the bow, or deck washing.

IP66 is a rigorous water resistance standard — significantly more protective than splash-resistant (IPX4) or rain-resistant (IPX5) ratings that appear on lower-grade marine fixtures.

Stainless Steel Cover — Corrosion Resistance Where It Matters Most.
The exterior cover of each light is stainless steel — the material specification for marine hardware that needs to resist the corrosive combination of salt air, salt water immersion, UV exposure, and galvanic activity over years of outdoor service. The stainless cover provides the primary aesthetic and structural protection for the light assembly, while the plastic housing underneath contributes lightweight construction and electrical isolation. This material combination — stainless steel exterior, plastic housing — is the standard approach in quality marine navigation light design, balancing corrosion resistance, weight, and cost effectively.

Three-Fastener Deck Installation — Simple, Secure, Permanent.
Each light installs to the deck surface using three #8 pan head fasteners — a straightforward installation that requires only basic hand tools and can be completed by the boat owner without professional assistance. The three-point fastener pattern provides a stable, rattle-free mounting that resists the vibration and dynamic loads of underway conditions. For permanent deck mounting, bed the fastener holes and the light base with a marine-grade sealant (polyurethane or polysulfide recommended) to prevent water intrusion through the deck at the fastener points.

Rated for Vessels Up to 20 Meters.
These lights are certified and rated for vessels up to 20 meters (approximately 65 feet) in length — covering the full range of recreational powerboats, sailboats, and motor yachts where deck-mount sidelights are the appropriate installation format. Confirm your vessel's length and the applicable COLREG/USCG visibility requirements before installation to ensure these lights meet your specific regulatory obligation.