T-H Marine LED-51891 Square LED Courtesy Companion Way Light, Black Bezel, White LED, Hidden Fastener Mount

The T-H Marine LED-51891 is a 2-1/4 inch square LED courtesy light designed to light pathways, stairways, cockpits, cabins, rod lockers, gear bins, and other storage compartments aboard a boat. It features a black bezel with a frosted polycarbonate lens over 3 bright white LEDs, giving a wide, evenly dispersed pool of light rather than a single bright point. The hidden-fastener design means there are no visible screw heads once installed, so the light sits flush and clean against the mounting surface for a factory-finished look.

Each LED-51891 draws just 15mA at 12 volts and is rated for up to 100,000 hours of service life, so it can stay on for extended periods without meaningfully loading the boat's battery. The circuit board is fully sealed in epoxy, protecting it from water intrusion, corrosion, and the vibration of running in rough conditions. Output is rated at 15 lumens, enough for safe wayfinding without washing out night vision. Installation follows the standard recessed courtesy-light pattern: a 1-3/4 inch mounting hole accepts the fixture, and the hidden fasteners secure it from behind for a clean face.

This light is sold as a final sale item and is not eligible for returns or exchanges, so confirm the bezel color and mounting style (hidden vs. Exposed fasteners) before ordering.

Specifications

• Brand: T-H Marine
• Manufacturer Part Number: LED-51891
• Bezel Color: Black
• LED Color: White
• LED Type: 3-LED
• Face Size: 2-1/4 inches square (2.25 x 2.25 inches)
• Mounting Hole Diameter: 1-3/4 inches
• Mounting Style: Hidden Fasteners
• Overall Dimensions: 3.6 x 1 x 3.6 inches
• Voltage: 12 Volts
• Wattage: 12 watts
• Light Output: 15 lumens
• Current Draw: 15 mA
• Rated Life: up to 100,000 hours
• Lens: Frosted polycarbonate
• Sealing: Circuit board sealed in epoxy for water, corrosion, and vibration resistance
• Weight: 0.09 pounds
• UPC: 733572076653
• Warranty: 1 year manufacturer

Frequently Asked Questions

What is the T-H Marine LED-51891 used for? The LED-51891 is a square LED courtesy light meant to illuminate compartments, rod lockers, gear bins, pathways, stairways, cockpits, and cabins on a boat.

What size hole do I need to install the LED-51891? The LED-51891 requires a mounting hole with a 1-3/4 inch diameter, and the light has a 2-1/4 inch square face that covers the cutout once installed.

Are the fasteners visible on the LED-51891? No. The LED-51891 uses a hidden-fastener design, so it mounts flush with no exposed screw heads for a clean finish.

How many LEDs are in this light and what color are they? The LED-51891 contains 3 white LEDs behind a frosted polycarbonate lens, producing about 15 lumens of light output.

What voltage does the LED-51891 run on and how much power does it draw? This light operates on 12 volts and draws only 15mA of current, though its rated wattage is 12 watts.

Is the LED-51891 waterproof? Yes, the circuit board on the LED-51891 is completely sealed in epoxy, which protects it from water intrusion, corrosion, and vibration.

How long do the LEDs in this light last? The LEDs used in the LED-51891 are rated for up to 100,000 hours of life.

What color bezel does the LED-51891 come in? The LED-51891 has a black bezel; a white-bezel version with the same hidden-fastener mounting is sold separately as a different part number, so double check the bezel color before ordering.

Can I get this light with exposed fasteners instead? The LED-51891 is the hidden-fastener version; a version with exposed fasteners is available as a separate part number if that mounting style is preferred.

What are the overall dimensions of the LED-51891? The LED-51891 measures approximately 3.6 x 1 x 3.6 inches overall, with a 2-1/4 inch square face and a 1-3/4 inch mounting hole diameter.

How much does the LED-51891 weigh? The LED-51891 weighs 0.09 pounds.

Can I return the LED-51891 if it doesn't fit? The LED-51891 is sold as a final sale item and is not eligible for returns or exchanges, so confirm bezel color, mounting style, and hole diameter before purchasing.