1. Introduction
Thank you for choosing the AHLTD T10 3030 3SMD LED Bulb. This manual provides essential information for the proper installation, operation, and maintenance of your new LED bulbs. These versatile bulbs are designed for various automotive lighting applications, offering bright and efficient illumination.

Figure 1: AHLTD T10 3030 3SMD LED Bulbs
2. Product Features
- Good Spotlight: Provides focused and effective illumination.
- Not Dazzling: Designed to provide bright light without causing glare.
- Plug and Play: Easy installation without the need for complex wiring modifications.
- High-brightness High-quality Chip: Ensures high brightness, low light decay, good heat dissipation, high stability, and durability.
- Quality Electronic Components: Features imported resistors and a double capacitor design for good stability and a long service life.
- Thickened Fiberglass Board: Offers good thermal conductivity, fast heat dissipation, and enhanced stability for a longer service life.
- T-10 Interface: Standard plug design allows direct replacement of original car bulbs.

Figure 2: Detailed view of LED bulb components
3. Specifications
| Parameter | Value |
|---|---|
| Product Name | Car LED Reading Light |
| Model | T10/W5W |
| LED Chip | 3030 |
| LED Quantity | 3SMD/Bulb |
| Voltage | DC 12V |
| Power | 1.4W/Bulb (2W) |
| Luminous Flux | 120LM/Bulb (300lm) |
| Color Temperature | White / Red / Blue / Yellow |
| CANBUS Function | Yes |
| Application | Car Clearance, Reading, License Plate, Parking Lights, Dome Light, Reverse Brake Light, Trunk Light, Turn Signal |
| Interface Type | T10 (W5W/194) |
| Item Weight | 12g |
| Size | 9x24mm (31mm length) |
| Lifespan | Over 50,000 Hours |
| Current | 0.12A |

Figure 3: Available LED bulb colors
4. Installation and Setup
The T10 3030 3SMD LED bulbs are designed for easy 'plug and play' installation. Follow these general steps:
- Safety First: Ensure your vehicle's ignition is off and the lights are cool to the touch before beginning installation.
- Locate the Socket: Identify the existing bulb you wish to replace (e.g., dome light, license plate light, etc.).
- Remove Old Bulb: Carefully pull out the old T10/W5W bulb from its socket.
- Insert New LED Bulb: Insert the new AHLTD T10 LED bulb into the socket.
- Test Functionality: Turn on your vehicle's lights to test the new LED bulb. If it does not light up, remove the bulb, flip it 180 degrees, and reinsert it. LED bulbs are polarity sensitive.
- Secure Installation: Once confirmed working, ensure the bulb is securely seated in the socket.
Video 1: Demonstration of LED bulb testing and functionality.

Figure 4: T10 LED bulb vs. traditional bulb
5. Operation
Once installed, the AHLTD T10 3030 3SMD LED bulbs operate automatically with your vehicle's lighting system. Simply turn on the corresponding light function (e.g., interior dome light, parking lights, etc.) as you normally would.

Figure 5: Example of LED bulbs used as interior dome lights

Figure 6: Various application scenes for the LED bulbs
6. Maintenance
These LED bulbs require minimal maintenance due to their long lifespan and durable design. To ensure optimal performance:
- Cleaning: If necessary, gently wipe the bulb's surface with a soft, dry cloth to remove dust or debris. Avoid using harsh chemicals.
- Connection Check: Periodically check that the bulbs are securely seated in their sockets to prevent flickering or intermittent operation.
7. Troubleshooting
If your LED bulb is not functioning correctly, consider the following:
- Bulb Not Lighting Up:
- Polarity: LED bulbs are polarity sensitive. Remove the bulb, flip it 180 degrees, and reinsert it.
- Connection: Ensure the bulb is fully and correctly inserted into the socket.
- Vehicle Circuit: Check the vehicle's fuse for the corresponding light circuit.
- Flickering: This can sometimes be caused by an unstable power supply or a loose connection. Re-seat the bulb or consult a professional if the issue persists.
- CANBUS Errors: While these bulbs feature CANBUS functionality, some sensitive vehicle systems may still trigger a 'bulb out' warning. If this occurs, an additional CANBUS decoder might be required (not included).
8. User Tips
- Verify Fitment: Before purchasing, always double-check your vehicle's manual or existing bulb to confirm the correct T10/W5W size and type.
- Correct Polarity: Remember that LED bulbs are polarity sensitive. If the bulb doesn't light up initially, simply reverse its orientation in the socket.
- Brightness: Users have noted these bulbs provide good, long-lasting brightness.
9. Warranty and Support
For any questions, technical support, or warranty claims, please contact the seller directly through the platform where you purchased the product. You may also refer to the comprehensive user manual available in PDF format for additional details: User Manual (PDF).