Lumishore ORA THX204 Thru-Hull Underwater LED Light, White Light, 10.5-31V DC, IP68, 6100 Fixture Lumens, 110° Beam

Overview

The Lumishore 010-04515-00 is an ORA THX204 thru-hull underwater LED light that outputs white light for docking, swim platform lighting, and general waterline illumination. It runs on 12V or 24V DC systems (10.5 to 31 V DC) with an internal driver and a simple 2-wire hookup, and it carries an IP68 water-ingress rating for continuous submersion. Max current draw is 4.9 A on 12V systems and 2.4 A on 24V systems.

Light output is rated at 6,100 fixture lumens with a 110 degree beam to spread light across the waterline instead of creating a narrow hot spot. The face measures 95 mm (3.75 in) with an 18 mm (0.71 in) low-profile housing, and the shaft requires a 16.5 mm (21/32 in) hull cut-out. A 2 m (6 ft 6 in) cable is standard.

The body is marine bronze with a borosilicate glass lens, and a bonding point is provided for connection to the vessel bonding system.

Key features

• Single-color white output; 6,100 fixture lumens with a 110 degree beam angle
• IP68 water-ingress rating for underwater mounting
• 12V or 24V DC operation (10.5 to 31 V DC) with internal driver and a 2-wire connection
• Max current draw: 4.9 A at 12V, 2.4 A at 24V
• Low-profile face: 95 mm (3.75 in) diameter with an 18 mm (0.71 in) housing profile
• 16.5 mm (21/32 in) shaft hole cut-out; 96 mm (3.78 in) shaft length inside the hull
• 2 m (6 ft 6 in) cable as standard; cable can be extended with proper gauge to limit voltage drop
• Marine bronze body with borosilicate glass lens; bonding connection provided (bonding required)

Installation and setup

Plan the mounting spot with clear access inside the hull for the washer and locking nut, and use a flat area of transom or side hull. For clean underwater illumination, mount the light 100 to 300 mm (4 to 12 in) below the minimum loaded waterline and keep it away from exhaust outlets and other heat sources.

Drill the 16.5 mm (21/32 in) shaft hole perpendicular to the hull, seal any exposed core material, then bed the fitting with a marine sealant compatible with your hull material. During initial fit-up, snug hardware hand tight (under 1 Nm), then after the sealant cures re-tighten to under 3 Nm to avoid squeezing out sealant or damaging the module.

Electrical and control

Wire it as a straightforward on/off circuit: red to +12/24 V DC, black to ground, with all connections made waterproof. Each light should be individually fused at 6 A on 12V DC systems or 4 A on 24V DC systems, or protected by an equivalent breaker.

Bond the fitting using the provided bonding point to your vessel bonding system. If you extend the cable, use the correct conductor size and keep voltage drop within standard marine practice for lighting circuits.

Maintenance and care

Keep the lens and body free of marine growth so output stays consistent. Clean with a soft cloth or soft bristled brush and avoid abrasive pads, solvent-based cleaners, acids, or alkalis. Do not pressure wash or sandblast the light.

Some discoloration of the bronze body can occur over time without affecting operation. Small amounts of condensation can also appear in certain conditions and typically clear as the unit cools.

Use cases on board

This light is a good match for boats that want a single-color white underwater light with simple switching and no external driver to mount. It is commonly installed at the transom or along the sides of the hull, where the wide beam helps spread light along the waterline for nighttime maneuvering and anchorage use.

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