Sport S3116s Underwater LED Light for Small and Medium Fishing and Cruising Boats
Designed specifically for small to medium fishing and cruising vessels, the Sport S3116s underwater LED from OceanLED delivers powerful illumination and features meant to improve night fishing and enhance onboard visibility. Producing 9,800 lumens, this compact underwater fixture is marketed toward boaters who need broad surface coverage as well as focused water penetration, and it includes a strobe pattern OceanLED says helps attract fish.

The Sport S3116s combines two beam angles to suit different needs around the hull. A 90-degree surface beam angle spreads light across a wide area around the boat, illuminating the water directly beneath and around the transom to improve visibility for night-time activity and to make bait and structure easier to see. A focused 20-degree side beam penetrates deeper into the water column, increasing contrast and reaching farther out from the hull. OceanLED states the headlight delivers approximately 20 percent more brightness than other comparable underwater lights in its class, a performance edge they attribute to the combination of lumen output and beam shaping.
In addition to steady white or blue output options, the unit offers a strobe pattern intended to attract fish. This feature appeals to anglers who rely on light to draw baitfish and predatory species to the vicinity of the boat. The choice between white and blue light gives boat owners flexibility: white typically maximizes overall illumination and color rendition, while blue is often favored for its appearance and behavior in water—both aesthetic and functional considerations depending on target species and local conditions.
Beyond fish attraction, underwater lighting provides several practical benefits for boaters. Well-positioned lights increase safety by improving visibility around the stern when boarding, handling gear, or working on deck at night. They can also aid in locating lines, lures, and live bait, and they enhance the visual appeal of the boat during evening cruises or when docked. Because the Sport S3116s is intended for smaller vessels, it is sized and specified with typical recreational and light-commercial applications in mind.
When considering an underwater light like the Sport S3116s, think about placement and mounting to get the best performance. Positioning the fixture where it has an unobstructed view of the water and avoids turbulence from the propeller wash will improve both light spread and longevity. While the manufacturer provides specific installation guidelines and sealed enclosures to ensure durability in the marine environment, routine inspections and cleaning of the lens and housing will help maintain output and prevent fouling—particularly in warm or nutrient-rich waters where algae and barnacles can accumulate.
Durability and electrical safety are important for any marine lighting installation. Choosing a product from an established marine lighting company can simplify sourcing replacement parts and technical support. For those comparing underwater lights, evaluate lumen output in conjunction with beam angles and control options (such as steady, dimmable, or strobe modes) rather than lumen rating alone. Real-world performance depends on optics, viewing angle, and water conditions as much as raw lumens.
The Sport S3116s is available in white or blue and is priced at $500. For U.S. customers, OceanLED USA lists contact details in Deerfield Beach, Florida, with phone contact at (954) 523-2250. This model and its features were originally covered in the February 2017 issue of the publication where the product review first appeared.
Whether you are outfitting a fishing boat to improve night-time catch rates or adding underwater lighting to enhance safety and aesthetics on a cruiser, the Sport S3116s offers a focused set of features—high lumen output, dual beam angles, and a fish-attracting strobe—that make it a practical option for small and medium-sized boats. As with any marine electrical gear, follow manufacturer installation recommendations and perform regular maintenance to ensure reliable, long-term performance.