Boat Underwater Lights

With our respected team of product, sales and service professionals, Australian Marine Sales is your ‘one-stop’ solution for all your boating needs, including expert installation services

Boat Underwater Lights

Elevate your boating experience with our supply and organisation of installation services for boat underwater lights. These lights, installed under the waterline of your boat, add a touch of magic to your nighttime adventures and enhance visibility during evening cruises.

Whether you’re enjoying a quiet night on the water, fishing with friends, or captivating your children with the sight of sea life swimming up to the illuminated vessel, boat underwater lights create unforgettable moments.

Contact us today to learn more about how boat underwater lights can enhance your time on the water.

Marine Lighting Options

Australian Marine Sales introduces three distinct types of marine lighting solutions.

Firstly, the Thru-Hull range represents a milestone in LED underwater lighting technology, offering upgradeable and serviceable lights with a corrosion-proof, injection-molded housing. These lights require no lenses or seals and can be serviced and upgraded without hauling out the boat.

Secondly, the surface mount LED products provide exceptional performance where a recessed fitting is not applicable, delivering both distance and width of illumination and suitable for mounting on any flat surface.

Lastly, the jetty and dock lighting solutions have been utilised worldwide to illuminate marinas and docks, offering incredibly durable and high-powered dock lights available in a variety of colours. Additionally, our pathway lights ensure your dock, marina, or pier stands out with style.

AMS Expert Team

At Australian Marine Sales, we’re proud to offer top-quality products and organise expert installation to ensure that your boating experience is nothing short of extraordinary.

We guide you through the selection process, whether you’re seeking enhanced visibility, aesthetic appeal, or a combination of both, we’re dedicated to providing solutions tailored to your specific requirements.

Contact an AMS Expert Today

Phone: 1300 795 531

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Underwater Boat Lights

Enhancing Your Vessel’s Nighttime Aesthetics and Safety

Underwater boat lights are specialised lighting systems designed for marine vessels that enhance visibility and create striking visual effects. They illuminate the water around and beneath a boat, improving safety during nighttime navigation and adding an element of beauty to the vessel. Various types and configurations are available, catering to a wide range of boats, from small fishing skiffs to large yachts.

Selecting the right underwater boat lights involves understanding the different options and matching them to your vessel’s size and purpose. LED technology has become the norm due to its long life and efficiency, but it’s important to consider factors such as brightness levels, colour options, and beam angles. Installation must be done correctly to ensure waterproofing and electrical

safety, while regular maintenance is critical for the longevity of the lights. Properly installed and maintained lighting not only increases your boat’s visibility to other vessels but also contributes to an enjoyable ambiance on the water.

Regarding safety, using underwater boat lights calls for adherence to specific precautions to prevent electrical hazards and environmental impact. Accessories may be integrated to enhance the lighting system’s functionality, including options to control the lights remotely or synchronise them with onboard systems. Moreover, educating yourself on the brand and product specifications can help you make informed purchasing decisions while being aware of common questions and problems can prepare you for potential issues.

Key Takeaways

Underwater boat lights improve night visibility and add aesthetic appeal

Careful selection, proper installation, and maintenance are essential

Safety measures and accessory integration enhance functionality and experience.

Types of Underwater Boat Lights

Underwater boat lights enhance your vessel’s aesthetic appeal and improve visibility during nighttime operations. They are available in different types to suit various preferences and applications.

LED Lights

LED (Light Emitting Diode) lights are popular for longevity and energy efficiency. These lights are typically submersible, boasting a high brightness level with less power consumption. They’re available in a range of colours, allowing you to customise the look of your boat. You’ll find that their bulbs don’t need frequent replacement.

Halogen and Xenon Lights

Although not as efficient as LED, halogen and xenon lights offer a high-intensity beam with a warm colour temperature. They use more power and generate more heat, which can be a consideration based on your usage. Halogen lights are often more cost-effective upfront but have a shorter lifespan than LEDs, leading to more frequent bulb changes.

Solar-Powered Lights

Solar-powered lights are a sustainable choice that harnesses the sun’s energy. These lights generally feature LED bulbs and battery packs that store power. While they can be less bright than their powered counterparts, they offer the convenience of not relying on your boat’s electrical system or external plugs. This makes them particularly useful for smaller boats or areas where wiring may be a challenge.

Selection Guide

When choosing underwater boat lights, consider their luminosity, durability, and energy efficiency to ensure the best value and performance for your vessel.

Brightness and Colour Options

Underwater boat lights vary in brightness, typically measured in lumens. A higher lumen count translates to greater illumination. Your choice of colour also affects visibility and aesthetics; common options include blue, green, white, and multi-coloured variants.

  • Brightness: Opt for lights that offer suitable lumens for your intended use.
  • Colour: Consider the water conditions and personal preference when selecting the colour.

Durability and Waterproofing

The durability of underwater lights is paramount. Choose lights rated with a high Ingress Protection (IP) code, indicating they can withstand the marine environment.

  • Waterproof: Ensure a minimum rating of IP68 for submersion.
  • Materials: Lights made from marine-grade stainless steel or bronze offer superior corrosion resistance.

Power Consumption

Power usage is a vital consideration since it impacts your boat’s battery life and energy expenses.

  • Voltage: Most lights are designed to operate efficiently on the standard 12V or 24V systems.
  • LED Options: LED lights are recommended for their low power consumption and long lifespan.

By carefully evaluating brightness, colour, durability, and power usage, you can select underwater lights that enhance your boat’s appearance while ensuring reliability and efficiency.

Installation Procedures for Underwater Boat Lights

Installing underwater boat lights can enhance the functionality and aesthetics of your marine vessel. The process requires precision, attention to detail, and the appropriate tools. Two common methods are through-hull and surface-mount installations.

Through-Hull Installation


  • Gather necessary tools, including a hole saw, drill, marine sealant, and safety gear.
  • Ensure you have proper wiring and waterproof connectors for electrical connections.

Cutting the Hole

  • Determine the location of the lights carefully to avoid interference with other hull fixtures.
  • Use a hole saw attached to your drill to make a hole matching the size of the through-hull fixture.

Fitting the Light

  • Apply marine sealant around the edge of the hole to ensure a watertight seal.
  • Insert the thru-hull light fixture and secure it using the provided mounting hardware.


  • Connect the wiring through the interior of the hull to your power source.
  • Use waterproof connectors and ensure all wiring is insulated and routed away from moving parts.

Surface-Mount Installation

  1. Preparation: Check you have the right tools: screwdriver, sealant, wiring equipment, and a template if provided.
  2. Attaching the Light: Place the provided template onto the desired location on the hull and mark the screw holes.
    Drill pilot holes, then apply a marine sealant to the back of the light fixture to prevent water ingress.
  3. Securing the Fixture: Align the light with the pilot holes and fasten it with screws adequately for a firm mount.
  4. Wiring: Run the cables from the light to the power source.
    Ensure all connections are secure, using waterproof connectors to prevent short circuits.

For either installation method, follow the manufacturer’s instructions carefully and ensure all electrical work is carried out per Australian Standards AS/NZS 3000:2018 (the Wiring Rules). Additionally, considering the safety risks involved with electrical installations, you may opt to hire a qualified marine electrician to complete the installation.

Maintenance and Care

Proper maintenance ensures the longevity and optimal performance of your underwater boat lights. Regular cleaning and troubleshooting are essential.

Cleaning Underwater Lights

  1. To keep your underwater lights in top condition, follow these simple steps:
  2. Turn off the power to avoid electrical hazards.
  3. Allow lights to cool down if they’ve been used recently.
  4. Remove marine growth using a soft cloth or non-abrasive brush; harsh scraping tools can damage the lens.
  5. Rinse thoroughly with fresh water to remove any salt deposits.
  6. Dry with a soft cloth to prevent water spots that could reduce light output.

Troubleshooting Common Issues

Encountering problems with your underwater lights can be frustrating. Here are solutions to common issues:

  • Light Not Working:

    • Check the power supply to ensure it’s switched on and properly connected.
    • Inspect the bulb for damage or burn-out and replace it if necessary.
  • Dim Light Output:

    • Ensure the lens is clean and free from obstructions.
    • If your lights are LED, check if the driver is functional, as a faulty driver may reduce brightness.
  • Water Inside Fixture:

    • Confirm that the sealing gasket is intact and the fixture is properly waterproofed.
    • Re-seal or replace the housing if there’s evidence of water ingress.

Use Cases and Benefits

Underwater boat lights serve both practical and aesthetic purposes, enhancing your experience whether for leisure or work on the water.

Recreational Activities

Swimming: When you install underwater lights on your boat, they illuminate the water around you, making night swimming safer and more inviting. The lights can reveal the clarity and movement of the water, providing a more secure environment for you to swim.

Fishing: Your success in night fishing can significantly improve with underwater boat lights. These lights attract small marine creatures, which can lure larger fish, making it easier for you to catch them.

Ambiance: Underwater lighting can dramatically enhance the ambience around your boat. Whether you’re moored at a dock or anchored at sea, the right kind of lighting can create a mesmerising effect and set a relaxing mood for you and your guests.

Commercial Applications

Dock Illumination: Properly installed underwater lights at your commercial dock not only aid in visibility for docking manoeuvres but also improve safety for workers and patrons alike. Illumination can prevent accidents and also deter unauthorised access.

Enhance Visibility: For vessels engaged in commercial activities at night, such as tour boats, enhanced underwater illumination improves safety for onboarding and disembarking passengers and provides a better view of any underwater activities that may be part of the tour experience.

Safety Precautions for Underwater Boat Lighting

When installing underwater boat lights, ensuring they enhance your safety during nighttime navigation and in emergencies is crucial.

Nighttime Navigation

Your boat’s underwater lighting should provide sufficient visibility without causing a distraction to other vessels. Here are some specific precautions:

  • Positioning: Install lights to illuminate the water around your boat without shining directly into other boaters’ eyes.
  • Intensity: Choose lights that are bright enough to see clearly but not so intense they blind other navigators or interfere with your night vision.

Emergency Situations

In emergencies, underwater lights can be a critical signal to rescuers. Keep the following in mind:

  • Functionality: Regularly check your lights for proper operation. Should an emergency arise, functioning lights can be a beacon for help.
  • Colour: Consider using coloured lights that signify distress, such as red or blue, to make your vessel more noticeable to emergency responders.

Always comply with local maritime regulations regarding the use of boat lighting to ensure you maintain the safety of your vessel and its passengers.

Accessory Integration

Integrating underwater boat lights with your vessel involves connecting various accessories to enhance the system’s functionality and control. This includes selecting compatible smart control systems and supplementary lighting accessories to match your boat’s power specifications and desired brightness.

Smart Control Systems

Your underwater boat lighting can be significantly enhanced by integrating smart control systems. These systems allow you to adjust the brightness and colour of your lights remotely and may often be managed through a dedicated app on your phone.

  • Remote Access: Control your lights from a distance for added convenience.
  • Customisation: Easily adjust lighting settings to your preferences.

These smart systems connect to your boat’s lighting through wireless networks or Bluetooth and often feature waterproof switches, which can be installed on your vessel.

Supplementary Lighting Accessories

When enhancing your boat’s underwater lighting, supplementary lighting accessories can play a pivotal role in improving visibility and ambiance.

  • Additional Fixtures: You can augment your setup by adding extra lights if your boat requires more brightness or if you’re looking to illuminate a larger area.
  • Power Management: Choose accessories compatible with your boat’s power system to ensure efficient energy usage.
  • Lighting Types: Incorporate different types of lighting (e.g., LED strips or spotlights) to achieve the desired effect and coverage.

It’s crucial to consider the power specifications of additional lighting to ensure compatibility with your boat’s existing electrical system. Accessories should be chosen not only for their luminescence but also for their durability and resistance to marine environments.

Product and Brand Overview

When choosing underwater boat lights, you have options ranging from high-end products with advanced features and extended warranties to more affordable solutions that still deliver reliable performance. Several well-known brands dominate the market, each with its unique offerings.

High-End Market

In the high-end segment, underwater boat lights are designed with superior materials and the latest technology. Lumitec is a standout, offering products like the SeaBlazeX2 that provide brilliant illumination and exceptional durability. They typically come with a substantial warranty, ensuring peace of mind. Typical prices can be quite high but are justified by the longevity and enhancements in marine lighting they provide.

Budget-Friendly Options

For cost-conscious people, budget-friendly underwater boat lights offer a solid performance at a more accessible price point. Although these options may not have all the advanced features of their high-priced counterparts, they deliver adequate lighting for your marine needs. Products within this range might lack extended warranties or the robustness of high-end models but are sufficient for casual or less frequent usage.

Popular Brands

The market is populated by brands that have established themselves as reliable providers of underwater boat lights. Aside from Lumitec, brands like Shadow Caster and Bluefin LED offer a range of products catering to various needs and preferences. Shadow Caster’s lighting solutions are known for their ease of installation and versatility, while Bluefin LED specialises in offering a range of colours and light intensities to enhance the aesthetics of your boat.

When choosing a brand, consider the balance between price and quality, as well as the warranty terms that accompany your purchase, to ensure that you are getting the best value for your investment.

Frequently Asked Questions

This section addresses key considerations regarding underwater boat lights, such as placement, selection criteria, benefits, colour choices, technology options, and illumination levels.

What is the optimal mounting location for underwater lights on a vessel?

For maximum effectiveness, underwater lights should be mounted below the waterline on the transom or hull of your boat. The placement should avoid areas where the light may be obstructed or where turbulence is created.

How do I select the most effective underwater lighting for my boat?

Choose lights based on your boat type, the water conditions you’ll encounter, and your desired visibility range. Consider factors like brightness (measured in lumens), beam angle, and durability.

What is the significance of using underwater lights on boats?

Underwater lights enhance the aesthetics of your vessel and improve visibility for night-time activities. They also attract marine life, making them beneficial for fishing or creating a pleasant ambiance.

Which colour of underwater lights provides the best visibility for marine use?

Blue and green underwater lights typically offer the best visibility in marine environments. These colours penetrate water more effectively and are excellent for clear or slightly murky conditions.

Are there wireless solutions for underwater boat lighting?

Yes, there are wireless LED options that allow you to remotely control your boat’s underwater lighting system. These systems often come with mobile apps that adjust light intensity and colour.

How many lumens are recommended for effective underwater boat illumination?

For recreational vessels, underwater lights ranging from 1,000 to 3,000 lumens provide adequate illumination. Larger boats or those requiring greater visibility, such as for professional use, may need lights with higher lumens.

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