Lumishore’s ultra-slim thru-hull THX204 has a small hull cut out requirement of only 5/8” (16.5mm). Choose from 2 LED colors: blue or white.
The THX204 features 6,100 fixture lumens and an ultra-wide 110°beam angle, allowing the light to saturate deep into the water.
With a simple 2-wire installation and no external drivers, it’s one of the easiest thru-hull lights to install and is suitable for transom and side hull installations.
Control the THX204 by a standard on/off switch.
Features
- Single Color – Blue or White
- 6,100 Fixture Lumens
- 110° Beam Angle
- Warranty
Specifications
| Specification | Value |
|---|---|
| Available LED Colors | Single Color (White, Blue) |
| Lumens | 13,725 |
| Verified Fixture Lumens (White) | 6,100 |
| Number and Type of LED | White – 12 x 10W High Power LEDs, Blue – 24 x 3W High Power LED |
| LED Power – Hicob Array | Yes |
| Typical LED Life | 50,000+ Hours |
| Beam Angle (Degrees) | 110° |
| Driver | MULTI-CHANNEL Internal Driver |
| Supply Voltage | 12/24 V DC |
| Max Current Draw | 4.9A/2.4A |
| Housing Type | Marine Grade Aluminum Bronze |
| User Control Options | ON/OFF Switch |
Downloads
FAQs
Lumishore recommends mounting the light 4–12 in (100–300 mm) below the minimum load water line for best underwater illumination.
Yes. The instructions say to disconnect or isolate the vessel’s power source and battery prior to installation.
Yes. It must be mounted on a flat (not curved) surface, and underwater installs should be on the transom or side hull only.
Use marine sealant such as 3M 4200 (recommended) or similar, applied as instructed around the sealant groove and base areas.
Initially tighten the retaining bolts hand tight (less than 1 Nm). After sealant cures, re-tighten using a 5mm Allen wrench to less than 3 Nm.
Clean with a soft cloth or soft bristled brush. Do not use abrasive materials, solvent/acid/alkali cleaners, pressure washing, or sandblasting.
The datasheet specifies an IP68 water ingress protection rating.
Yes. The instructions say to test the lights and confirm they work as expected before the boat goes back in the water.
Contact the SailRACE team — as certified marine experts we’re happy to help with product selection, installation and after-sales servicing, before and after your purchase.
