ACR SM-3 SOLAS Lifebuoy Marker Light

The ACR SM-3 SOLAS Lifebuoy Marker Light is a high-intensity LED strobe designed to maximize visibility and accelerate rescue operations in water emergencies. Manufactured by ACR Electronics, a leader in marine safety equipment, this compact marker light delivers 360-degree visibility up to approximately two miles—critical when seconds determine survival outcomes.

The SM-3 activates automatically upon water immersion and begins strobing immediately, requiring no manual intervention when a crew member or passenger enters the water unexpectedly. Operating runtime exceeds 40 hours at 30°C (86°F), with extended duration at warmer temperatures—critical for extended search windows in temperate waters. At colder temperatures (−1°C / 30°F), runtime extends beyond 24 hours, ensuring functionality in harsh maritime conditions. The compact form factor measures 3 × 3 × 11 inches and weighs just 1 pound, making it practical to mount on lifebuoys without adding excessive weight or bulk.

This marker light suits commercial marine operations, petro-marine installations, offshore cruising, fishing vessels, and any application where rapid visual location of personnel in the water is essential. The SOLAS (Safety of Life at Sea) certification indicates compliance with international maritime safety standards, meeting regulatory requirements for commercial and regulated recreational vessels. Weekend anglers running offshore, charter operations, and professional mariners all depend on proven visual signaling equipment when weather, darkness, or distance obscure a crew member in the water.

Marker lights are standard safety equipment on modern vessels, and the SM-3 delivers reliable performance without complicated activation procedures. Stored alongside life jackets and lifebuoys, this light ensures that rescue efforts begin with immediate visual contact, reducing response time and improving survival outcomes in critical situations.