Attwood Marine Stern/Transom Lights

Attwood Marine Stern & Transom Lights: Built Where Safety Meets Innovation

When navigating after dark, your stern light is one of the most critical pieces of safety equipment on your boat. Attwood Marine, with over a century of marine engineering heritage, brings the same demanding standards to their stern and transom lights that have made them a trusted name across the entire boating world. Their LED transom lights represent a thoughtful fusion of regulatory compliance, practical installation, and long-term durability.

The LightArmor LED 3-Mile Transom Light

Attwood's flagship stern lighting offering is the LightArmor LED 3-Mile Transom Light (Part #6556-7), a product that helped pioneer the transition to LED technology in marine navigation lighting. Designed for pleasure craft up to 164 ft. (50 m) in length, it was among the first transom navigation lights to achieve a 3-nautical-mile (3NM) visibility rating in an LED format.

What sets this light apart is Attwood's proprietary optics design, which directs 135 degrees of light squarely aft — keeping the operator in a "shadow" and maximizing the visibility of the vessel to approaching traffic from behind. This is a meaningful safety advantage over generic transom lights, where light scatter can compromise both visibility and operator comfort.

Engineering Details Worth Knowing

• Electropolished stainless steel cover — resists corrosion in both saltwater and freshwater environments while maintaining a premium appearance
• Surface-mount snap design — eliminates exposed fasteners for a clean, professional installation and reduced water intrusion points
• Ultra-low power draw — runs at just 1.5 watts at 12 VDC, minimizing battery drain on extended trips
• 50,000+ hour LED lifespan — backed by a 10-year warranty, making it one of the most durable transom lights on the market
• Universal mounting compatibility — fits both Attwood and Perko mounting hole patterns, simplifying retrofit and replacement installations
• Full regulatory compliance — meets ABYC C-5 & A-16 standards and USCG CFR 183.810 requirements

Why Attwood Sets the Standard

Attwood's navigation lights aren't just aftermarket accessories — they are trusted as original equipment by leading boat manufacturers including Sea Ray, Axopar, and Nordkapp. That OEM-level confidence translates directly to aftermarket buyers: when you install an Attwood transom light, you're fitting a product that boat builders themselves stake their reputations on.

For boaters upgrading an aging incandescent stern light or replacing a failed unit, Attwood's 3-mile LED transom light offers a substantial step forward in visibility, energy efficiency, and peace of mind — all in a compact, 3-inch round footprint that installs in minutes. Explore the full range of stern and transom lights or browse the complete Attwood Marine catalog for all your on-water lighting needs.