OceanLED 2010XFM Pro Series HD Gen2 Underwater Light Blue

The OceanLED 2010XFM Pro Series HD Gen2 is the through-hull underwater lighting solution that solved the single biggest problem with traditional fixed underwater lights: serviceability. Traditional through-hull underwater lights are bolted into the hull from the outside and sealed in place - if the light fails after a few years of service, you have to haul the boat out of the water to replace it, which costs hundreds to thousands of dollars in yard time plus the cost of the replacement light itself. The XFM (Xchangeable Flush Mount) design changes that: the light's working head is mechanically secured to a through-hull base that stays installed, and the head can be removed and replaced from inside the boat by a swimmer or in some cases without even getting in the water. Replace a failed unit. Swap colors between seasons. Upgrade to a future generation of LED technology. All without dry-docking.

What "7,000 fixture lumens" delivers in real underwater lighting. 7,000 lumens is serious output - bright enough to fully illuminate the water around a 60-foot motor yacht's transom and stern flank in clear or moderately turbid water, or to light up the swim platform area of a 45-foot sportfish for night fishing and swimming safety. The 67% brightness increase over the previous generation comes from Cree's next-generation High Definition LED chips - more lumens per watt of input power, cleaner color quality (no greenish or pinkish color shift that older underwater LEDs sometimes showed), and improved spectral output that penetrates water more efficiently. For boats running multiple 2010XFM HD Gen2 units around the hull and transom, the cumulative output produces the magazine-cover underwater glow that defines premium yacht aesthetics at dock.

Midnight Blue specifically. The 2010XFM HD Gen2 is offered in three super-bright color options - White, Midnight Blue (this product), and Ultra White. Midnight Blue is the deeper blue spectrum that's most popular for night fishing applications (deeper blues attract baitfish more effectively than greener blues), for aesthetic yacht glow (the classic underwater color associated with high-end yachts), and for boats whose hull color complements blue light better than white. The deep blue spectrum also penetrates water further than white before being absorbed, so the visible range underwater is greater for blue light.

The XFM mechanical design in detail. The 2010XFM consists of two main components: (1) The through-hull base that bolts into the hull from inside and seals against the hull with O-rings - this part stays installed permanently. (2) The working head with the LEDs, electronics, and lens - this part mechanically locks to the base and can be removed from inside the boat by unlocking the mechanical attachment. When the head comes off, water doesn't enter the boat because the base's seals are still in place against the hull. The entire service operation happens inside the boat - swimmer pushes the new head through the base, mechanical lock engages, done. For boats whose owners value low-maintenance ownership and don't want underwater lights becoming an annual haul-out expense, the XFM design is transformative.

Retrofit compatibility with existing underwater lighting cutouts. The 2010XFM's through-hull base is sized to retrofit into most existing OceanLED installations and many competing brands' cutouts without requiring new hole-cutting. If you have older OceanLED lights or some legacy underwater lighting brands installed, you can typically upgrade to the XFM Gen2 by replacing the head and reusing the existing through-hull. Check OceanLED's compatibility chart for your specific existing installation, but the broad retrofit compatibility is one of the practical reasons owners choose the XFM line.

Aluminium Bronze AB2 construction. The fixture body is cast from AB2 (a specific marine-grade aluminium bronze alloy specified for permanent saltwater immersion). AB2 has the right combination of strength (it survives impact from floating debris), corrosion resistance (decades of underwater service without significant material loss), and electrolytic behavior (doesn't cause aggressive galvanic corrosion when paired with stainless steel fasteners or aluminum hulls when proper isolation is used). For metal hulls (aluminum or steel), OceanLED's Delrin Isolation Sleeve accessory (sold separately) electrically isolates the bronze fixture from the metal hull to prevent galvanic interaction.

Tritonium scratch-resistant lens with marine growth protection. The lens is OceanLED's proprietary Tritonium glass - hardened to resist scratches from sand, gravel, and accidental contact during cleaning, with a marine growth protection treatment that resists barnacle and algae fouling on the lens surface. Maintenance is essentially "wipe the lens occasionally with a soft cloth" - no aggressive cleaning, no scraping, no antifouling paint. The lens stays clear for the life of the light.

Cree HD LEDs with 40,000+ hour rated life. The light source is Cree's High Definition LED platform - Cree is the established premium LED chip manufacturer that supplies most of the high-end automotive, aerospace, and marine LED applications. 40,000 hours of rated life is essentially permanent for recreational marine use - even at 4 hours per day, every day, 40,000 hours is about 27 years of service. For most boat owners, the LED chips never fail in the boat's lifetime - failures (when they happen) are typically water ingress at seal points rather than LED chip wear.

Factory sealed against water ingress. The 2010XFM is sealed at the factory with marine-grade gasketing and is not field-serviceable from a sealing standpoint - if the seal fails, you replace the head rather than trying to re-seal it. The factory seal is the same approach used on professional commercial diving lights and submarine illumination - much more reliable than field-sealed assemblies that depend on operator technique.

Reverse polarity protected. If the installer accidentally wires the light backwards (red to negative, black to positive), the internal protection circuit blocks current flow rather than letting the LEDs burn out or short-circuit. The light simply won't illuminate until the polarity is corrected. This protects both the light and the boat's wiring from typical install mistakes.

Deutsch plug-and-play quick connectors. The electrical connections use Deutsch DT-series sealed connectors - the same connector family used in commercial heavy-equipment electrical systems and military vehicles. The DT connectors are waterproof, lockable, and tool-free to engage and disengage. Plug the light's pigtail into the boat's wire harness, lock the connector, done. No crimping, no soldering, no heat-shrink.

Compatible with 12V and 24V DC. The 2010XFM accepts both 12V (recreational standard) and 24V (some sportfish and commercial vessels) DC input without needing different part numbers. Internal voltage regulation keeps LED output consistent across the operating voltage range. An AC upgrade conversion kit is available separately for boats that want to power the underwater lights from the shore-power AC system through an inverter - useful for dockside aesthetic lighting without running the DC house bank.

Mounting recommendations. For boats up to 65 feet (20 m), the recommended install is 2 to 6 lights total - typically 2 to 4 on the transom (with 3 to 5 foot spacing between lights) and 0 to 2 on each side of the hull (with 3 to 6 foot spacing). The exact count and spacing depends on the desired effect (full underwater glow vs. focused stern illumination) and the boat's hull length. For longer boats, additional lights down the chine line produce the full hull-length underwater glow effect.