The Lumishore THX204 is a compact, ultra-slim thru-hull underwater LED light designed for easy installation and powerful performance. Requiring a minimal hull cutout of only 5/8” (16.5mm), the THX204 is ideal for boat owners seeking a sleek, low-profile lighting solution with maximum impact. Offering a choice of either blue or white LED output, this single-color fixture delivers an impressive 6,100 verified fixture lumens and projects a wide 110° beam angle to deeply saturate the surrounding water with vivid illumination.
One of the most installation-friendly underwater lights available, the THX204 operates with a simple 2-wire setup and includes a multi-channel internal driver—no external driver needed. It is compatible with 12V or 24V DC systems (with an optional AC configuration), and draws a maximum current of just 4.9A at 12V or 2.4A at 24V. Its intuitive operation via a standard on/off switch makes it ideal for boaters who want great lighting without complex controls.
Built with a robust marine-grade aluminum bronze housing, the THX204 is engineered for durability in the harshest environments and is suitable for transom, side hull, or bottom mounting. Powered by a high-performance HiCOB LED array, the fixture incorporates 12 x 10W high-power white LEDs or 24 x 3W high-power blue LEDs, producing a total output of up to 13,725 lumens. With a typical LED life of over 50,000 hours, the Lumishore THX204 provides long-lasting, brilliant underwater lighting with minimal maintenance and exceptional ease of use.
https://www.lumishore.com/product/thx204-ora
