1. Introduction
This user manual provides detailed instructions for the installation, operation, and maintenance of your Hoffen 4FT Marine Boat Navigation Light. Designed for enhanced visibility and safety, this LED NavLight is Coast Guard compliant and features advanced control options. Please read this manual thoroughly before use to ensure proper function and longevity of your product.
2. Product Overview
The Hoffen 4FT Marine Boat Navigation Light is a high-performance LED stern light engineered for marine environments. It offers 360-degree illumination and is compliant with 2 Nautical Mile visibility requirements, ensuring your vessel is easily seen. Key features include:
- Enhanced Visibility: 360-degree LED illumination with 2 Nautical Mile Coast Guard compliance.
- Superior Water Resistance: IP67 rated for protection against water immersion up to 1 meter.
- Smart Control: Bluetooth APP and remote control for convenient operation.
- Versatile Compatibility: Includes three different collars (PERK0 Large Threaded, Attwood Light Armor, and Universal Non-Threaded) for broad installation compatibility.
- Dynamic Lighting: Over 1000 light shows, 400 patterns, and 100 modes with millions of color options.

Image: The Hoffen 4FT Marine Boat Navigation Light, showcasing the main light unit, remote control, and the three included collars for various mounting options.
3. What's in the Box
Please verify that all components are present in the package:
- 1 x 4FT Navigation Light
- 1 x Remote Control
- 1 x Attwood Light Armor Collar
- 1 x Universal Non-Threaded Collar
- 1 x Perko Large Threaded Collar
4. Setup and Installation
The Hoffen Navigation Light is designed for easy plug-and-play installation, compatible with most common 2-wire stern light mounts. No additional wiring is typically required as it fits into existing boat plugs.
4.1 Choosing the Right Collar
Select the appropriate collar based on your boat's stern light mount:
- PERK0 Large Threaded Collar: For mounts supporting speeds up to 90 MPH.
- Attwood Light Armor Collar: For mounts supporting speeds up to 70 MPH.
- Universal Non-Threaded Collar: For trolling or other non-threaded applications.
4.2 Installation Steps
- Ensure your boat's power is off before installation.
- Attach the selected collar to the base of the 4FT Navigation Light.
- Simply plug the light into your boat's existing NavLight Port.
- Twist the collar until it securely locks into place.
- No polarity requirements, simplifying the connection.

Image: Visual guide demonstrating the simple two-step installation process: plugging the light into the NavLight Port and twisting the collar to lock it.

Image: Examples of the Hoffen Navigation Light installed on different types of boats, illustrating its universal fit and appearance.
5. Operating Instructions
Your Hoffen Navigation Light can be controlled via the included remote control or a dedicated Bluetooth application.
5.1 Using the Remote Control
The remote control allows for easy adjustment of light modes, brightness, and speed. Refer to the remote's button layout for specific functions:
- ON/OFF: Power the light on or off.
- AUTO: Activates automatic light show playback (366 kinds mode switching).
- M+/M-: Cycle through different light modes (e.g., 213 strobe modes, 400 vibrant patterns).
- S+/S-: Adjust the speed of dynamic light patterns (10 levels of speed adjustment).
- Brightness +/-: Increase or decrease the light intensity.
- Color Buttons: Select specific solid colors.
- DIY: Customize patterns.
5.2 Using the Bluetooth APP
For advanced control and customization, download the Hoffen NavLight APP from your device's app store. The app allows you to:
- Access over 1000 fun NavLight shows.
- Choose from millions of color options.
- Create and save custom lighting patterns.
- Adjust brightness and speed with precision.
Follow the app's on-screen instructions for pairing and operation.
5.3 Manual On/Off Button
An On/Off button is located on the base of the light unit for direct control, allowing you to turn the entire light on or off without the remote or app.

Image: The remote control and a smartphone screen displaying the Bluetooth app interface, illustrating the various control options for colors, patterns, and brightness.
6. Maintenance
To ensure the longevity and optimal performance of your Hoffen Navigation Light, follow these maintenance guidelines:
- Cleaning: Regularly wipe the light's lens and housing with a soft, damp cloth to remove salt residue, dirt, and grime. Avoid abrasive cleaners or solvents that could damage the acrylic lens.
- Inspection: Periodically check the mounting connection to ensure it remains secure. Inspect the light for any signs of physical damage or wear.
- Storage: If storing the light for an extended period, ensure it is clean and dry. Store in a cool, dry place away from direct sunlight.

Image: The Hoffen Navigation Light being subjected to water splashes, highlighting its IP67 waterproof, sandproof, and shockproof design for reliable performance in harsh weather.
7. Troubleshooting
If you encounter issues with your Hoffen Navigation Light, refer to the following common problems and solutions:
- Light Does Not Turn On:
- Check the power connection to the boat's NavLight Port.
- Ensure the light is securely seated and locked in its mount.
- Verify that the boat's power supply to the port is active.
- Try using the manual On/Off button on the light's base.
- Remote Control Not Responding:
- Ensure there are no obstructions between the remote and the light.
- Check the remote control's battery and replace if necessary.
- Bluetooth APP Connection Issues:
- Ensure Bluetooth is enabled on your mobile device.
- Make sure the light is powered on.
- Restart the Bluetooth APP and try reconnecting.
- Ensure your device is within Bluetooth range of the light.
- Light Patterns or Colors Are Incorrect:
- Reset the light by turning it off and on again.
- Use the remote or app to re-select your desired mode or color.
If the problem persists after attempting these solutions, please contact Hoffen customer support for further assistance.
8. Specifications
| Feature | Specification |
|---|---|
| Brand | Hoffen |
| Model | NL-04ft (Boat Navigation Light) |
| Color | Multicolor |
| Visibility | 2 Nautical Miles (Coast Guard Compliant) |
| Water Resistance | IP67 (Waterproof, Dustproof) |
| Special Features | Waterproof, Lightweight, Dustproof, High Beam, Shockproof |
| Wattage | 5 watts |
| Lens Material | Acrylic |
| Item Weight | 2.05 pounds |
| Package Dimensions | 49.5 x 3.5 x 2.6 inches |
| Country of Origin | China |
9. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact Hoffen customer service directly. Keep your purchase receipt as proof of purchase for any warranty claims.
Hoffen Customer Service: Please visit the official Hoffen website or refer to the contact information provided with your product for support.





