1. Product Overview
The CARDI K4 Universal RGBW Ambient Light system is designed to create a vibrant and customizable atmosphere within your vehicle's interior. Featuring 265 colors and dynamic modes, this LED strip lighting system offers both APP and button control for a personalized driving environment.


2. Package Contents
Before installation, please verify that all components are present and undamaged.

The standard package typically includes:
- LED Light Strips (various lengths for different locations)
- Control Modules
- Wiring Harnesses
- Handle Lights
- Storage Lights
- Installation Tools (e.g., plastic pry tool)

3. Installation Guide
This section provides a general guide for installing the CARDI K4 Ambient Light. Professional installation is recommended for optimal results.
3.1 Identifying Installation Locations
The CARDI K4 system is designed for universal car fitment. Common installation locations include the car interior outline, footwells, storage compartments, door handles, and central control areas.
- Check for Gaps: Use a thin card (like a credit card) to gently probe along the edges of your car's interior panels. Any gap that allows the card to be inserted is a potential location for an ambient light bar.
- Dashboard: Typically, one long and one short light strip can be installed on the dashboard.
- Doors: Each door can accommodate one light bar. A basic package usually includes four light bars for four doors.
3.2 Basic Installation Steps
The installation process generally involves inserting the LED strips into existing gaps and connecting them to the control modules and power source.
- Prepare the Area: Ensure the installation surfaces are clean and dry.
- Insert Light Strips: Carefully insert the LED light strips into the identified gaps using the provided installation tool or a thin card.
- Connect Wiring: Connect the light strips to the control modules using the provided wiring harnesses. Ensure all connections are secure.
- Power Connection: Connect the main control module to your vehicle's 12V power supply. It is crucial to connect to a switched power source to prevent battery drain when the vehicle is off. Consult a professional if you are unsure about wiring.
- Secure Components: Secure control modules and excess wiring to prevent rattling or interference with vehicle operation.
For a visual demonstration of the installation process, please refer to the video below:
4. Operating Instructions
The CARDI K4 Ambient Light system can be controlled via a dedicated mobile application or physical buttons.
4.1 Mobile Application Control
The CARDI K4 features an independent app for one-touch control, offering a unique driving experience.
- Download the App: Scan the QR code provided in the product packaging or search for the 'CARDI' app on your smartphone's app store.
- Connect to Device: Enable Bluetooth on your smartphone and open the CARDI app. The app should automatically detect and connect to your K4 ambient light system.
- Color Selection: Use the color wheel within the app to select from 265 available colors.
- Brightness Adjustment: Adjust the brightness slider to your preferred intensity.
- Speed Adjustment: For dynamic modes, adjust the speed slider to control the transition speed of colors.
- Dynamic Color Modes: Explore various pre-set dynamic modes such as 'red breath', 'red green blue breathing', and 'colorful work chasing light'.
- Zone Control: The app may offer zone control (e.g., Zone 1, Global, Zone 2) allowing you to customize different areas of your car independently or globally.

4.2 Button Control
If your system includes physical buttons, they typically allow for basic functions such as power on/off, changing colors, and switching modes. Refer to the specific button layout for detailed functionality.
5. Maintenance
To ensure the longevity and optimal performance of your CARDI K4 Ambient Light system, follow these simple maintenance guidelines:
- Cleaning: Gently wipe the LED strips and control modules with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners, which can damage the components.
- Wiring Inspection: Periodically check all wiring connections to ensure they are secure and free from damage.
- Software Updates: Keep the mobile application updated to the latest version to access new features and performance improvements.
- Avoid Excessive Force: Do not bend or apply excessive force to the LED strips during cleaning or adjustment, as this can damage the internal components.
6. Troubleshooting
If you encounter any issues with your CARDI K4 Ambient Light, refer to the following troubleshooting tips:
- Lights Not Turning On:
- Check the power connection to ensure it is properly secured and receiving 12V power.
- Verify that the control module is correctly connected to the LED strips.
- Ensure the system is turned on via the app or physical button.
- App Not Connecting:
- Make sure Bluetooth is enabled on your smartphone.
- Restart the CARDI app and try reconnecting.
- Ensure the ambient light system is powered on.
- If issues persist, try restarting your phone and the vehicle.
- Inconsistent Lighting/Colors:
- Check for any loose connections between the LED strips and control modules.
- Ensure the LED strips are not physically damaged or kinked.
- Try resetting the system via the app or by temporarily disconnecting power.
- Lights Flickering:
- This could indicate an unstable power supply. Check your vehicle's 12V power source.
- Ensure all wiring is properly insulated and not short-circuiting.
If these steps do not resolve the issue, please contact customer support.
7. Specifications
| Attribute | Value |
|---|---|
| Brand Name | CARDI |
| Model Number | K4 |
| Product Name | K4 Smart Car Ambient Lights |
| Type | Car Interior Ambient Lighting System |
| Voltage | 12 V |
| Rated Power | other |
| Color | 265 Colors Ambient Lights |
| Color Modes | Dynamic Color Modes |
| Control | APP/Button Control |
| Material | ABS+LED |
| Car Fitment | Universal |
| Installation Location | car interior outline/foot sole/storage/handle/central control, etc. |
| Product Function | create atmosphere enhance driving pleasure |
| Condition | New |
| Quality | Superior |
| Origin | Mainland China, Guangdong, China |
| Year | Universal |
8. User Tips
No specific user tips were available from provided reviews or Q&A. However, general tips for ambient lighting systems include:
- Experiment with Colors: Try different color combinations and dynamic modes to find what best suits your mood or driving conditions.
- Adjust Brightness: Lower the brightness at night to avoid distraction and enhance comfort.
- Clean Regularly: Dust and dirt can diminish light output. Regular cleaning helps maintain optimal brightness.
9. Warranty and Support
The CARDI K4 Universal RGBW Ambient Light comes with a 12-month warranty from the date of purchase.
For technical support, warranty claims, or any other inquiries, please contact the seller directly:
- WhatsApp: +86 15616176843
- Email: 3481659178@qq.com
- WeChat: +86 16673278573
Please provide your purchase details and a clear description of the issue when contacting support.





