Lumishore SUPRA Series Underwater Light Extension Cable, 3 m

Overview

The Lumishore 010-14460-00 is a 3 m SUPRA light extension cable that adds reach when your existing light lead will not make it from the mounting location to the connection point.

It extends the harness run without forcing mid-run splices, which is helpful when the cable has to pass through rigging tubes, tight chases, or a transom where access is limited after the boat is back together.

This cable is a good fit for installs where the lights are aft but the driver, hub, or switching gear is mounted forward in a drier equipment space for easier service.

Key features

• 3 m (about 10 ft) extension length for SUPRA light wiring runs
• Helps keep the existing harness intact by reducing the need for cutting and splicing
• Adds slack for routing through transoms, stringers, and rigging tubes without putting tension on the run
• Intended for SUPRA-series lighting harness applications rather than general 12 V accessory wiring
• Useful when relocating the connection point to a more accessible spot for troubleshooting and future upgrades

Compatibility and fit

This cable is intended for SUPRA lighting system extensions. Confirm your light family and connector style match your current SUPRA wiring before ordering, especially on boats that have more than one lighting system onboard.

Measure the full route the cable will take, including bends and service loops, and plan a path that avoids spots where wiring can sit in standing water.

Installation and routing

Route the cable away from sharp edges, moving gear, and high-heat zones. Add chafe protection where it passes through bulkheads or fiberglass, and support the run so it cannot rub under vibration.

Make connections with the system powered down, then leave enough slack near the light and connection point so the harness is not pulled tight when the boat flexes or when you remove a light for service.

Use on board

Common uses include extending from transom-mounted underwater lights up to a console, lazarette, or machinery space where the lighting modules are mounted. It can also help when a swim platform, bracket, or rerouted chase changes the original cable path and you need extra length to reach the same equipment location.

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