User Manual

1. Introduction

Thank you for choosing the AHLTD 17cm COB LED Daytime Running Lights. These universal car accessories are designed to enhance vehicle visibility and aesthetics with their bright, energy-efficient COB LED technology. Featuring a waterproof design and easy installation, they are suitable for various automotive applications.

2. Safety Information

• Always disconnect the vehicle's battery before performing any electrical work to prevent short circuits or electrical shock.
• Ensure all wiring connections are secure and properly insulated to prevent electrical hazards and ensure longevity.
• Do not modify the product in any way not described in this manual. Unauthorized modifications may void the warranty and pose safety risks.
• Keep the product away from excessive heat sources or open flames.
• If you are unsure about any installation steps, consult a qualified automotive technician.

3. Package Contents

Your package should contain the following items:

• 2 x AHLTD 17cm COB LED Daytime Running Lights
• 2 x Double-sided adhesive strips

4. Specifications

5. Setup and Installation

Follow these steps to install your AHLTD COB LED Daytime Running Lights:

1. Choose Mounting Location: Select a flat, clean, and dry surface on your vehicle where the DRLs will be visible and not obstruct other lights or sensors. Common locations include the bumper or grille area.
2. Clean the Surface: Thoroughly clean the chosen mounting surface with rubbing alcohol to remove any dirt, grease, or wax. Allow it to dry completely.
3. Prepare the Lights: The back of each lamp features sticky face glue. Tear off the protective packaging film from one side of the double-sided adhesive strip and apply it firmly to the back of the DRL lamp.



4. Attach to Vehicle: Carefully peel off the remaining protective film from the adhesive strip on the DRL. Align the DRL with your desired mounting location and press firmly for several seconds to ensure a strong bond.



5. Wiring:
   • Identify the red wire (positive) and the black wire (negative) on each DRL.
   • Connect the red wire to a 12V positive power source that turns on with your vehicle's ignition (e.g., ACC wire, parking light wire, or a dedicated DRL relay).
   • Connect the black wire to a suitable ground point on your vehicle's chassis.
   • Ensure all connections are secure, crimped, and insulated with electrical tape or heat shrink tubing to prevent moisture ingress and short circuits.
6. Test Functionality: Reconnect the vehicle's battery and test the DRLs to ensure they illuminate correctly.

6. Operating Instructions

The AHLTD COB LED Daytime Running Lights are designed for simple operation. Once properly installed and wired, they will illuminate automatically when the connected power source is active (e.g., when the vehicle's ignition is turned on).

These DRLs are available in a variety of colors, including White, Blue, Crystal Blue, Yellow, Red, Pink, and Green, allowing for customization to match your vehicle's style or personal preference.

Examples of DRLs in use:

7. Maintenance

• Cleaning: Periodically clean the surface of the DRLs with a soft, damp cloth to remove dirt and debris. Avoid using harsh chemicals or abrasive cleaners that could damage the silicone coating.
• Inspection: Regularly check the wiring and connections for any signs of wear, corrosion, or damage. Ensure the adhesive remains secure.
• Waterproof Feature: The surface of the lamp is covered with thick silicone to provide a good waterproof effect. While designed to be waterproof, avoid prolonged submersion or high-pressure water jets directly on the lights.

8. Troubleshooting

• Lights Not Illuminating:
  • Check all wiring connections to ensure they are secure and correctly connected (red to positive, black to negative).
  • Verify that the power source is active (e.g., ignition is on).
  • Inspect for any blown fuses in the circuit.
  • Ensure there is proper voltage (12V DC) at the connection points.
• Flickering Lights:
  • Check for loose or corroded connections.
  • Ensure the power source provides a stable 12V DC.
  • If flickering persists, consider installing a relay or capacitor to stabilize the power supply.
• One Light Not Working:
  • Inspect the wiring for that specific light for any breaks or loose connections.
  • Test the individual light by connecting it directly to a 12V power source (e.g., car battery) to rule out a faulty unit.

9. User Tips

• Enhanced Waterproofing: For installations in areas highly exposed to moisture or road spray (e.g., on the bumper), consider applying additional silicone sealant around the wiring entry points and soldering areas to further protect against water ingress.
• Heat Dissipation: While the lights are designed for efficiency, ensuring good airflow around the back of the DRLs can help with heat dissipation, potentially extending their lifespan. Some users have removed the adhesive backing for better thermal contact with a metal surface.
• Longevity with Relays: To maximize the lifespan of your DRLs and protect your vehicle's electrical system, it is recommended to connect them via a 12V relay. This ensures a stable power supply and prevents potential issues from voltage fluctuations.

10. Warranty and Support

This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. For specific warranty details, please refer to the official product page or contact the seller directly.

For additional information or assistance, you may refer to the official user manual PDF available at: Product Guides & Documents (PDF).