Lumishore SUPRA TIX1604 Thru-Hull Underwater Light, Blue/White

Underwater lights change how a boat feels at the dock after dark. The Lumishore SUPRA TIX1604 is the full-power end of that idea. It's a dual-color thru-hull fixture that pushes 45,000 total lumens and a verified 20,000 fixture lumens of clean white light off the transom, with a deep blue mode that lights up the water column for night fishing. This is a big, serious light built for boats that want the whole swim platform glowing.

The output comes from two banks of LEDs working together. Forty-eight white LEDs at 10 watts each, and 108 blue LEDs at 3 watts each, all riding on the HICOB array. You can run white, run blue, fade between them, adjust brightness, or throw the light into strobe. Everything stays synchronized across fixtures if you've got more than one in the water, so a pair on the transom pulses together instead of fighting each other. The 110 degree beam angle spreads that light wide instead of punching a narrow hole, which is what you want for lighting up a broad patch of water behind the boat.

Here's the part that sets the TIX line apart. The LED array and the driver both live inside the fixture, and the whole thing is interchangeable from inside the hull. That means if you ever need to service the light or swap the array, you're not hauling the boat and diving on it. You do the work from the dry side. For anyone who's fought a failed underwater light on a splash-mount fixture, that alone is worth a hard look. The bronze body threads through a thru-hull fitting and mounts on the transom, the side, or the bottom, so it fits a range of hull shapes.

Build quality is where the price lives. The housing is marine grade aluminum bronze, which handles salt water corrosion far better than plain aluminum and won't chalk up the way cheaper fixtures do. The lens is borosilicate glass, not acrylic, so it stays clear and shrugs off UV and heat. It carries an IP68 waterproof rating for permanent submersion, and the internal driver is protected against surges, low voltage, reverse polarity, and power line noise. Plug and play connections keep the wiring honest. If you isolate the bronze properly from any steel running gear, it'll live a long time down there.

Power is where you need to plan. The TIX1604 runs on a 24 volt DC system and pulls up to 6.5 amps at full white output, with a working range of 20 to 31 volts. On a larger powerboat that's usually no problem, but you'll want a dedicated breaker and a real look at voltage drop on the run back to the light. This isn't a light you tap into a spare accessory circuit. It also requires a light control module to run, and you drive it either through the SUPRA i-Connect Hub and Switch or straight from a compatible MFD when you add the SUPRA Bridge module. The fixture ships with a 9.8 foot cable to get you back to the hub.

So who's this for? Big center consoles, sportfishers, and cruisers where the owner wants the transom lit up like a stage and doesn't mind the install work or the 24 volt requirement. It's a lot of light and a lot of fixture. If you're running a smaller 12 volt boat or you just want a modest glow, this is more than you need. But if you want the water behind the boat to look incredible and you want a fixture you can actually service without a haul-out, the TIX1604 earns it. It's backed by a 3 year warranty, and we're here to help you spec the control module and wiring before you drill the hull.