Overview

The Hella Marine NaviLED PRO Deck Mount Adaptor is a mounting base that lets compatible NaviLED PRO navigation lamps sit on a horizontal surface instead of a vertical face.

It supports installations where cable routing needs to exit from the rear or the bottom, and it leaves room underneath for a cable gland. The adaptor uses an acrylic body that resists UV, salt water, and impacts, which helps on open decks and hardtops that see regular washdowns and sun.

Overall size is 128 x 90 x 90mm, and the adaptor increases the installed lamp’s visual size by about 50%, which can look more proportionate on larger vessels or when replacing older deck-mounted incandescent fittings.

Key features

• Converts compatible NaviLED PRO navigation lamps for horizontal surface mounting.
• Fits the NaviLED PRO range (port, starboard, stern, masthead, and bi-colour lamps).
• Supports rear-exit or bottom-exit cabling for easier routing through a deck or housing.
• Hidden fastenings keep the install looking tidy once the lamp is in place.
• Space beneath the adaptor for fitting a cable gland.
• Acrylic construction that resists UV, salt water, and impacts.
• 128 x 90 x 90mm overall size with a 50.8mm (2.00 in) PCD mounting pattern.

Variants

This adaptor is offered in multiple configurations based on housing color.

The mounting footprint and fit with the NaviLED PRO lamp range stay the same across the options, with the visible finish being the main difference.

• 241287802 (Color: Black). Black suits darker decks, masts, and hardware where you want the adaptor to blend into the background.
• 241287812 (Color: White). White matches common gelcoat and many existing white navigation light bases for a consistent look.

Installation and setup

This adaptor is typically used when a NaviLED PRO lamp needs to be deck mounted on a cabin top, hardtop, or other flat surface, or when upgrading from older deck-mounted incandescent fittings. Plan the cable path first so the exit orientation works with your wire run and any existing penetration.

As with any deck penetration, seal fasteners and cable pass-throughs appropriately for your structure and mounting location, and leave enough slack to service the lamp without stressing the cable.

Compatibility and fit

This is an accessory mount for the NaviLED PRO navigation lamp family, including port, starboard, stern, masthead, and bi-colour lamps. It changes the mounting geometry and cable management, but it does not change the lamp’s electrical requirements or how the light is wired into your boat.

Use cases on board

A good match for refits where an older deck-mounted navigation light is being replaced, and for larger recreational or commercial boats that want NaviLED PRO lamps mounted on flat surfaces without leaving exposed fasteners.

Maintenance and care

Rinse with fresh water after salt exposure and clean with mild soap if needed. Avoid abrasive pads or harsh solvents that can haze acrylic over time.