YUFANYA NHK 3.0-inch Bi-LED Projector Lens Headlight Retrofit Kit Instruction Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of your YUFANYA NHK 3.0-inch Bi-LED Projector Lens Headlight Retrofit Kit. This product is designed to enhance vehicle lighting performance with its advanced LED technology, dual reflector design, and clear cut-off line. Please read this manual thoroughly before installation and use to ensure proper function and safety.

Image 1.1: Overview of the YUFANYA NHK 3.0-inch Bi-LED Projector Lens and its beam pattern.

2. Safety Information

Always observe the following safety precautions during installation and operation:

• Disconnect the vehicle's battery before beginning any electrical work to prevent electrical shock or short circuits.
• Wear appropriate personal protective equipment, including safety glasses and gloves.
• Ensure the vehicle is parked on a level surface with the parking brake engaged.
• Handle the projector lenses with care to avoid damage to the optical components.
• Improper installation can lead to reduced performance or damage to the vehicle's electrical system. If you are unsure about any step, consult a qualified automotive technician.
• Do not look directly into the LED light source when it is active, as it can cause eye strain or damage.

3. Package Contents

Verify that all components are present and undamaged upon opening the package:

• 2 x YUFANYA NHK 3.0-inch Bi-LED Projector Lenses
• Mounting Accessories (various adapters for H4/H7/9005/9006 reflectors)

Image 3.1: Contents of the YUFANYA NHK Bi-LED Projector Lens kit as packaged.

4. Product Features

The YUFANYA NHK Bi-LED Projector Lens offers several advanced features:

• Non-destructive Installation: Designed with a threaded-shaft mount for compatibility with H4, H7, 9005, and 9006 headlight reflectors, minimizing modifications.
• Dual Reflector Design: Features metal reflection cups and high-temperature resistant materials for extended lifespan and improved light concentration.
• Integrated Cooling System: Built-in high-quality cooling fans maintain optimal operating temperature, contributing to an estimated lifespan of up to 80,000 hours.
• High Brightness Output: Equipped with imported LED chips, delivering 26,000 lumens and 120W power at 6000K white light for superior illumination.
• Clear Cut-Off Line: Provides a focused beam with a sharp cut-off line to prevent glare for oncoming traffic while maximizing road visibility.

Image 4.1: Key features highlighting brightness (26000LM, 120W, 6000K) and beam performance.

5. Setup and Installation

Installation of the Bi-LED projector lens requires some technical ability and time. It is recommended to consult a professional if you are unfamiliar with automotive headlight retrofitting.

5.1 Tools and Materials Required

• Basic hand tools (screwdrivers, wrenches)
• Heat gun or oven (for opening headlight housing)
• Sealant (butyl rubber or similar, for resealing headlight housing)
• Multimeter (for electrical testing)
• Protective gloves and eyewear

5.2 Installation Steps

1. Prepare the Vehicle: Park the vehicle on a level surface, engage the parking brake, and disconnect the negative terminal of the battery.
2. Remove Headlight Assembly: Carefully remove the existing headlight assemblies from the vehicle. This may involve removing bumper clips, bolts, or other fasteners.
3. Open Headlight Housing: Heat the headlight housing to soften the sealant. This can be done using a heat gun around the seam or by placing the entire assembly in an oven at a low temperature (e.g., 200-250°F or 90-120°C) for 10-15 minutes. Carefully pry open the housing.
4. Remove Original Projector/Reflector: Disassemble and remove the original projector or reflector bowl from the headlight housing.
5. Install Bi-LED Projector Lens:
   • Insert the threaded shaft of the YUFANYA Bi-LED projector lens through the opening in the reflector designed for the original bulb.
   • Use the provided mounting accessories (adapters for H4/H7/9005/9006) to secure the projector lens firmly in place. Ensure the projector is oriented correctly (level) for proper beam pattern.
   • Tighten the retaining nut on the threaded shaft to secure the projector.
6. Wiring Connections: The projector lens has four wires:
   • Two larger wires (Red and Black): These connect to the vehicle's low beam circuit. Connect the Red wire to the positive (+) low beam wire and the Black wire to the negative (-) low beam wire.
   • Two smaller wires: These control the high beam solenoid. Connect these to the vehicle's high beam circuit. The polarity for these two wires typically does not matter.

   Note: If your vehicle uses a PWM (Pulse Width Modulation) system for headlights, an additional PWM interface module may be required for proper operation.
7. Test Functionality: Before resealing, temporarily connect the headlight assembly to the vehicle's wiring harness and reconnect the battery. Test the low beam and high beam functions to ensure they operate correctly. Verify the cut-off line is level.
8. Reseal Headlight Housing: Apply new sealant (e.g., butyl rubber) to the headlight housing and carefully reassemble it. Ensure a watertight seal to prevent moisture ingress.
9. Reinstall Headlight Assembly: Mount the headlight assemblies back into the vehicle.
10. Aim Headlights: After installation, properly aim your headlights according to local regulations to ensure optimal visibility and to avoid blinding other drivers.

Image 5.1: Dimensions and the non-destructive universal base design for easy retrofitting.

Image 5.2: Detailed view of the threaded shaft and mounting points for secure installation.

6. Operating Instructions

Once installed, the YUFANYA NHK Bi-LED Projector Lenses operate in conjunction with your vehicle's existing headlight controls:

• Low Beam: Activate your vehicle's low beam function as usual. The projector lenses will provide a wide, bright, and focused low beam pattern with a sharp cut-off.
• High Beam: Activate your vehicle's high beam function. The internal solenoid in the projector lens will engage, shifting the beam pattern to provide additional light output and distance illumination.

Image 6.1: Comparison of low beam and high beam patterns produced by the projector lens.

7. Maintenance

The YUFANYA NHK Bi-LED Projector Lenses are designed for long-term, maintenance-free operation. However, periodic checks can ensure optimal performance:

• Cleaning: Keep the outer lens of your headlight assembly clean from dirt, dust, and debris. Use a soft cloth and mild automotive cleaner. Avoid abrasive materials that could scratch the lens.
• Inspection: Periodically inspect the headlight assembly for any signs of moisture ingress or damage to the housing. Ensure all wiring connections remain secure.
• No Internal Maintenance: The internal components of the projector lens, including the LED chips and cooling fans, are sealed and do not require user maintenance. Do not attempt to open the projector lens housing.

8. Troubleshooting

If you encounter issues with your YUFANYA NHK Bi-LED Projector Lenses, consider the following:

• Lights Not Turning On:
  • Check all wiring connections for proper polarity and secure contact.
  • Verify the vehicle's fuses related to the headlight circuit.
  • Ensure the battery is properly connected and charged.
• High Beam Not Activating:
  • Check the connections for the two smaller high beam solenoid wires. While polarity usually doesn't matter for the solenoid, ensure they are securely connected to the high beam circuit.
  • Confirm the vehicle's high beam function is working with other lights (if applicable).
• Flickering or Intermittent Operation:
  • This can sometimes be caused by a vehicle's CANBUS system or PWM (Pulse Width Modulation) signals. An additional CANBUS decoder or PWM interface module may be required.
  • Inspect wiring for loose connections or damaged insulation.
• Uneven Beam Pattern or Glare:
  • Re-check the projector lens orientation within the headlight housing. It must be perfectly level.
  • Ensure the headlight assembly is properly aimed.

If troubleshooting steps do not resolve the issue, please contact YUFANYA customer support for further assistance.

9. Specifications

10. Warranty and Support

For warranty information, technical support, or any questions regarding your YUFANYA NHK Bi-LED Projector Lens Headlight Retrofit Kit, please refer to the contact information provided with your purchase or visit the official YUFANYA website. Keep your purchase receipt as proof of purchase for warranty claims.