1. Introduction
Thank you for choosing AHLTD T10 W5W 12V Canbus COB LED bulbs. These high-quality LED bulbs are designed to provide bright, efficient, and long-lasting illumination for various automotive applications. This manual provides essential information for the safe and effective installation, operation, and maintenance of your new LED bulbs.

2. Safety Information
- Always ensure the vehicle's ignition is off and the engine is cool before attempting any bulb replacement.
- Wear protective gloves to avoid touching the glass part of the bulb, as oils from your skin can reduce bulb lifespan.
- LED bulbs can become warm during operation. Allow them to cool down before handling.
- Do not look directly into the illuminated LED bulb, as it can be very bright and may cause temporary vision impairment.
- Keep out of reach of children.
- Dispose of old bulbs according to local regulations.
3. Package Contents
- 4 x AHLTD T10 W5W COB LED Bulbs
4. Setup and Installation
These T10 LED bulbs are designed for universal fitment in vehicles that use T10 (W5W/194) wedge-type bulbs. They are suitable for a wide range of applications:

Applications include: Width indicator light, side turn signal light, license plate light, compartment light, door light, interior light, and reversing light.
Installation Steps:
- Ensure your vehicle is turned off and the area around the bulb is cool to the touch.
- Locate the existing T10 bulb you wish to replace. Consult your vehicle's owner's manual if you are unsure.
- Carefully remove the old bulb from its socket. This usually involves pulling it straight out.
- Insert the new AHLTD T10 LED bulb into the socket. Ensure it is fully seated.
- Turn on the corresponding light function (e.g., parking lights, interior lights) to test the new LED bulb.
- If the LED bulb does not light up, remove it, flip it 180 degrees to reverse the polarity, and reinsert it into the socket. LED bulbs are polarity sensitive.
- Once confirmed working, secure any covers or housings you may have removed during installation.
5. Operation
The AHLTD T10 LED bulbs operate when power is supplied to the vehicle's lighting circuit they are installed in. They are available in multiple colors to suit your preference and application needs.

Available Colors: Blue, Crystal Blue, Green, Red, White, Yellow, Pink.
For a visual demonstration of the different colors, please watch the video below:
6. Maintenance
AHLTD T10 COB LED bulbs are designed for durability and minimal maintenance.
- Waterproof Design: The bulbs feature a waterproof design to effectively prevent damage from rain and moisture.
- High Temperature Resistance: These bulbs are built with high temperature resistance to prevent easy burnout, even in hot headlight housings.
- Cleaning: If necessary, gently wipe the bulb's silicone surface with a soft, dry cloth. Avoid using harsh chemicals or abrasive materials.
- Lifespan: With an estimated lifespan of 60,000 hours, these bulbs require infrequent replacement.

7. Troubleshooting
- Bulb does not light up:
- Check the polarity: Remove the bulb, flip it 180 degrees, and reinsert.
- Ensure the bulb is fully seated in the socket.
- Check the vehicle's fuse for that lighting circuit.
- Verify the vehicle's voltage is 12V.
- Bulb flickers:
- While these bulbs are Canbus compatible, some sensitive vehicle systems may still exhibit flickering. This is rare but can occur.
- Ensure the connection is secure and free from corrosion.
- Bulb is dim:
- Ensure the vehicle's electrical system is providing stable 12V power.
- Verify the bulb is correctly installed and not obstructed.
8. Specifications
| Feature | Specification |
|---|---|
| Brand Name | AHLTD |
| Model Name | T10 W5W 12V Canbus / Car Led Silicone Light |
| OEM Number | 11B949101 |
| Interface Type | T10 (W5W/194) |
| Socket Type | T10 |
| Voltage | DC 12V |
| Wattage | 3W |
| Lumens | 300Lm |
| LED Type | COB (12SMD COB chip) |
| Chip Number | 12led |
| Color Temperature | 6500K |
| Color Options | Blue, Crystal Blue, Green, Red, White, Yellow, Pink |
| Material | Silicone |
| Size | 31mm / 32mm x 10mm |
| Lifespan | 60,000 hours |
| Certification | CCC |
| Vehicle Compatibility | Universal |


9. User Tips
No specific user tips were available for this product. Always ensure proper installation and test functionality before fully reassembling vehicle components.
10. Warranty and Support
For any issues, questions, or support regarding your AHLTD T10 W5W 12V Canbus COB LED bulbs, please contact the seller or retailer from whom you purchased the product. Please refer to your purchase documentation for specific warranty terms and conditions.
An additional user manual in PDF format may be available for further details: View User Manual (PDF)