1. Introduction
This user manual provides detailed instructions for the installation, operation, and maintenance of your LeeKooLuu LK3 Backup Camera System. Designed for enhanced safety and convenience, this system offers a clear, wide-angle view behind your vehicle, assisting with parking and reversing maneuvers. Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of your device.

Image: The LeeKooLuu LK3 Backup Camera System, featuring the 4.3-inch monitor and the rear view camera unit.
2. Product Overview and Components
The LeeKooLuu LK3 Backup Camera System includes the following components:
- 1 x 4.3 Inch LCD Monitor
- 1 x Rear View Camera
- 1 x 4-pin Video Power Cable (3.0MM pure copper)
- 1 x Cigarette Lighter Power Adapter (with ON/OFF switch)
- Mounting Hardware and Accessories

Image: An illustration of the main components of the HD Wired 1080P Backup Camera System with a 4.3 Inch Screen.
3. Setup and Installation
The LeeKooLuu LK3 system is designed for easy installation, typically taking around 15 minutes. There are two primary methods for powering the system:
Method 1: Plug and Play (Cigarette Lighter Power)
- Connect the camera to the monitor using the provided 4-pin video power cable.
- Plug the system's power adapter into your vehicle's cigarette lighter socket. This method allows for manual switching of the camera display.
Method 2: Hardwired to Reverse Lights (Automatic Trigger)
- Connect the camera to the monitor using the provided 4-pin video power cable.
- Connect the system's power wires directly to your vehicle's reverse lights. This configuration will automatically activate the backup camera display when the vehicle is shifted into reverse.
Ensure all connections are secure and routed safely to avoid interference or damage.

Image: Visual guide demonstrating the quick 15-minute setup process for the backup camera system.

Image: A diagram illustrating the two power supply options: via cigarette lighter or by connecting to the reverse light.
Optional Features: LED Lights and Image Flip
The camera features a green wire and a white wire for optional functionalities:
- Green Wire: Cutting this wire will turn off the 6 white LED lights on the camera. Keep it intact for illuminated night vision.
- White Wire: Cutting this wire will change the image from a mirror view (default for rear view) to a normal facing image (suitable for front view). Keep it intact for mirror view.

Image: Instructions on how to modify the green wire to control LED lights and the white wire to flip the image between mirror and normal view.
4. Operating Instructions
Once installed, the LeeKooLuu LK3 system provides a clear, real-time view to assist your driving and parking.
Display Features:
- HD 1080P Color Images: The system provides high-definition color images for clear visibility.
- Super Night Vision: Equipped with 6 white LEDs, an anti-halo chip, and a 650 filter chip, the camera automatically switches to night vision mode in low light conditions, ensuring clear images day and night.
- 150° Wide View Angle: The camera offers a broad field of view, minimizing blind spots.

Image: A visual representation of the camera's super night vision feature, illuminating the path up to 30 feet.
Adjustable Parking Grid Lines:
The monitor allows for customization of the parking guide lines to suit your vehicle and preferences:
- Turn guide lines ON/OFF.
- Adjust the width of the guide lines.
- Move the guide lines up or down on the screen.
- Move the guide lines left or right on the screen.
Refer to the monitor's on-screen menu for these adjustments.

Image: An illustration demonstrating the 150-degree wide view angle and options to adjust the width and height of the parking guide lines.

Image: A series of monitor displays showing the various adjustments possible for the DIY guide lines, including on/off, width, and vertical/horizontal positioning.
5. Maintenance
The LeeKooLuu LK3 Backup Camera is built with durability in mind, featuring IP69 level waterproof performance and high weather resistance.
- Weather Resistance: The camera is designed to operate perfectly in extreme temperatures ranging from -22°F to 176°F, and is resistant to wind, rain, and dust.
- Cleaning: Regularly wipe the camera lens and monitor screen with a soft, damp cloth to ensure clear visibility. Avoid using harsh chemicals or abrasive materials.
- Cable Inspection: Periodically check the video power cable for any signs of wear or damage, especially where it passes through tight spaces or is exposed to the elements.

Image: Visual representation of the camera's IP69K waterproof rating and its ability to withstand harsh weather conditions, including extreme temperatures and dust.
6. Troubleshooting
If you encounter issues with your LeeKooLuu LK3 Backup Camera System, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No image on monitor | Loose cable connection, no power, incorrect wiring. | Check all cable connections (camera to monitor, power adapter). Ensure power source (cigarette lighter or reverse light) is active. Verify wiring if hardwired. |
| Image is shaky or blurred | Camera vibration, dirty lens, faulty connection. | Ensure camera is securely mounted. Clean the camera lens. Check cable connections for stability. The system uses advanced optical anti-shaking technology, but extreme vibrations can still affect it. |
| Signal delays or interference | Electrical interference, cable damage. | The LK3 system is designed for stable signal transmission. Ensure the cable is not pinched or damaged. Avoid routing cables near high-voltage wires if possible. |
| Night vision not working | Green wire cut, insufficient ambient light. | Ensure the green wire (for LED control) is intact if you desire LED illumination. The system automatically adjusts to low light. |
| Parking lines incorrect or missing | Lines turned off or misconfigured in settings. | Access the monitor's menu to enable and adjust the parking guide lines (width, position). |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | LKL-080 |
| Product Dimensions (Monitor) | 5"L x 3.1"W x 0.78"H |
| Item Weight | 1.4 pounds |
| Screen Size | 4.3 Inches |
| Display Technology | LCD |
| Video Capture Resolution | 1080p |
| Voltage | 12 Volts |
| Optical Sensor Technology | CMOS |
| Lens Type | Wide Angle (150°) |
| Waterproof Rating | IP69 |
| Operating Temperature | -22°F to 176°F (-30°C to 80°C) |
| Compatible Devices | Cars, Trucks, Trailers, RVs, Vans, SUVs, Campers |

Image: A diagram detailing the precise dimensions of the monitor and camera, along with various compatible vehicle types such as SUVs, off-road vehicles, cars, pickup trucks, small RVs, vans, and camper trailers.
8. Warranty and Support
The LeeKooLuu brand is committed to providing exceptional support and ensuring customer satisfaction. We offer the following:
- 30-Day Return Policy: For your peace of mind.
- 2-Year Quality Guarantee: Covering manufacturing defects and performance issues.
- Lifetime Technical Assistance: Our support team is available to assist you with any inquiries or issues you may encounter with your rear view camera system.
For assistance, please contact LeeKooLuu customer service. Contact information can typically be found on the product packaging or the official LeeKooLuu website.

Image: A customer service representative ready to provide 24-hour support for product inquiries.