Garmin SUPRA THX804 EOS, through-hull underwater light and controller
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Technical specifications
Technical specifications
| Product subtype | Underwater lighting |
| Installation type | Hull penetration |
| Operating voltage range | 10-30 |
| Typical power consumption | 106 |
| Lumens output | 12000.0 |
| Beam angle | 110.0 |
| Color temperature | 6500.0 |
| Housing material | Bronze |
| Color / finish | Bronze |
| IP rating | IP68 |
| Dimmable | Oui |
| Expected lifespan (hours) | 50000.0 |
| Amperage 24v Dc | 4.4 |
| Boat Type Compatibility | Sport boats, cruisers, yachts, superyachts |
| Bonding Required | true |
| Control type | DMX |
| Installation cutout diameter (mm) | 27 |
| Galvanic Corrosion Protection | Yes |
| Hull Isolation Available | true |
| Hull Material Compatibility | GRP (fiberglass), wood, metal, carbon fiber (with insulation kit) |
| Installation Depth Below Waterline | 150-250 |
| Lens material | Borosilicate glass |
| Lights Spacing Recommendation | 0.8 - 2 |
| Light source type | High-power LED |
| Max Operating Temperature C | 65 |
| Specific mounting location | Transom or hull side |
| Mounting surface flatness requirement | Flat panel (non-curved) |
| Mounting type | Through-deck |
| Product range | SUPRA EOS |
| Wired network | DMX |
Detailed description
Detailed description
Designed for demanding boat owners, the Garmin SUPRA THX804 EOS through-hull underwater light and controller is a high-intensity LED underwater lighting solution. This integrated system delivers brightness up to 13,500 lumens for the bi-color version (blue and 6500K white) or 12,000 lumens for the full RGB version (RGB + 6500K white), with an ultra-wide 110° beam angle for a halo effect. It features a robust marine-grade bronze construction and borosilicate glass lens, ensuring durability rated IP68 and LED lifespan exceeding 50,000 hours.
Advanced integration and control
The SUPRA THX804 EOS integrates via a DMX connection, enabling flexible control of colors, modes, and special effects directly from a compatible multifunction display (MFD) or an optional Lumishore screen. Control options also include a momentary switch via the EOS-lux control center for the RGB version, or via a SUPRA Hub or SUPRA Bridge for the bi-color version. This versatility makes it a choice for sports boats, cruisers, yachts, and superyachts seeking a high-performance and aesthetic underwater lighting solution. Like the higher-power THX1604, the THX804 is part of the through-hull lighting range for permanent and discreet installation.
Installation and technical specifications
The Garmin SUPRA THX804 EOS is installed as a through-hull unit, requiring a 27 mm mounting hole and a 140 mm depth. It is recommended to mount it on a flat surface on the transom or hull sides, between 150 and 250 mm below the waterline. Power input is compatible with 12 V/24 V (10.5–31 VDC range), with a maximum current draw of 8.8 A at 12 V and 4.4 A at 24 V. The system uses an external driver and offers simplified 2-wire electrical connectivity for power and plug-and-play data connection.
Expert opinion
Expert opinion
Pol CONIN
Digital Manager
« Expertise: Garmin SUPRA THX804 EOS through-hull light »
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