1. Introduction
This manual provides instructions for the installation, operation, and maintenance of the Loddery Xenon HID Ballast Headlight Control Unit with Igniter and D2S Bulb. Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Safety Information
WARNING: High Voltage. Risk of Electric Shock.
- Always disconnect the vehicle's battery before performing any electrical work.
- HID systems operate at very high voltages. Exercise extreme caution during installation and handling.
- Do not open the ballast unit. Internal components are not user-serviceable and contain high voltage.
- Ensure all connections are secure and properly insulated to prevent short circuits and moisture ingress.
- Installation should ideally be performed by a qualified technician.
3. Package Contents
The package includes the following components:
- 1 x Metal Ballast (Xenon HID Ballast Headlight Control Unit)
- 1 x D2S Bulb
- 1 x Igniter (typically integrated with the bulb assembly or ballast connection)
- 1 x Interconnection Cord (wiring harness)

Image 1: Overview of the Loddery Xenon HID Ballast, Igniter, D2S Bulb, and Interconnection Cord components included in the package.

Image 2: Detailed view showing the Xenon HID Ballast, the D2S bulb, and the igniter unit with its wiring.
4. Setup and Installation
This kit is designed for direct replacement. No programming or coding is required for the vehicle.
4.1 Pre-Installation Checklist
- Ensure the vehicle is turned off and the battery is disconnected.
- Verify that the replacement part numbers match the original components (OE part numbers: Ballast: 2847489904, 2847489907, 284748991A, 284748991B; Bulb: 26297-89902, 26297-9B91A, 26297-9F510).
- Gather necessary tools (e.g., screwdrivers, wrenches, gloves).
4.2 Installation Steps
- Access the Headlight Assembly: Depending on your vehicle model, you may need to remove the bumper, fender liner, or other components to gain access to the headlight assembly. Refer to your vehicle's service manual for specific instructions.
- Remove Old Components:
- Carefully disconnect the electrical connectors from the existing ballast and bulb.
- Unmount the old ballast unit.
- Remove the old D2S bulb from its housing. Avoid touching the glass of the bulb with bare hands.
- Install New D2S Bulb:
- Insert the new D2S bulb into the headlight housing. Ensure it is seated correctly and securely.
- Connect the igniter to the D2S bulb.
- Mount New Ballast:
- Secure the new ballast unit in the designated location. The ballast is constructed from premium ABS plastic for durability and heat dissipation.
- Connect the interconnection cord to the ballast.

Image 3: Close-up of the Xenon HID Ballast showing its main connector and mounting points.
- Connect Wiring:
- Connect the igniter assembly (bulb and igniter) to the ballast.
- Connect the vehicle's main power connector to the ballast. Ensure all connections are firm and properly seated.

Image 4: Illustration of the ballast, D2S bulb, and igniter connected via wiring, ready for installation.
- Test Functionality: Before reassembling the vehicle, reconnect the battery and test the headlight function. Ensure both low beam and high beam (if applicable) operate correctly.
- Reassemble: Once functionality is confirmed, reassemble any removed vehicle components.
5. Operation
The Loddery Xenon HID Ballast Headlight Control Unit operates automatically with your vehicle's headlight system. When the headlights are activated, the ballast provides the necessary high voltage to ignite the D2S Xenon bulb, then regulates the current to maintain stable light output.
- Fast Startup: The built-in high-pressure bag accelerates current conduction for quick ignition.
- Stable Performance: The ballast regulates power to ensure consistent light output from the HID bulb.
6. Maintenance
The Loddery Xenon HID Ballast and D2S Bulb are designed for long-term, maintenance-free operation. However, periodic checks can help ensure optimal performance.
- Visual Inspection: Periodically inspect the wiring and connectors for any signs of wear, corrosion, or damage.
- Cleanliness: Keep the exterior of the ballast and headlight assembly clean from dirt and debris.
- Bulb Replacement: If a D2S bulb fails, replace it with a compatible D2S Xenon HID bulb. Always replace bulbs in pairs for consistent light output.
- Ballast Protection: The internal waterproof circuit board protects against oxidation and aging, requiring no user maintenance.
7. Troubleshooting
If you experience issues with your Loddery Xenon HID Headlight system, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Headlight does not turn on. |
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| Headlight flickers or turns off intermittently. |
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| Headlight color appears incorrect or inconsistent. |
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If troubleshooting steps do not resolve the issue, contact Loddery customer support or a qualified automotive technician.
8. Specifications
| Feature | Detail |
|---|---|
| Product Name | Xenon HID Ballast Headlight Control Unit with Igniter & D2S Bulb |
| Brand | Loddery |
| Model Number | QA1027X-5974-1805079803 |
| Material | ABS Plastic (Ballast) |
| OE Part Numbers (Ballast) | 2847489904, 2847489907, 284748991A, 284748991B |
| OE Part Numbers (Bulb) | 26297-89902, 26297-9B91A, 26297-9F510 |
| Voltage | 838 Volts (Operating) |
| Item Weight | 15.2 ounces (approx. 431g) |
| Product Dimensions | 7.48 x 5.51 x 2.76 inches (approx. 19 x 14 x 7 cm) |
| Special Features | Built-in High-Pressure Bag, Internal Waterproof Circuit Board |
| Included Components | Ballast, D2S Bulb, Igniter, Interconnection Cord |
| Fit Type | Vehicle Specific Fit |
9. Vehicle Compatibility
This Xenon HID Ballast Headlight Control Unit with Igniter & D2S Bulb is compatible with various Nissan and Infiniti models. Please verify OE part numbers before purchase.
Compatible Nissan Models:
- Nissan 350Z Coupe (2003-2009)
- Nissan 350ZR Roadster (2003-2009)
- Nissan Altima (2007-2010)
- Nissan Maxima (2004-2010)
- Nissan Murano (2003-2010)
- Nissan Rogue (2008-2010)
Compatible Infiniti Models:
- Infiniti G35 Coupe (2003-2007)
- Infiniti G35 Sedan (2005-2006)
- Infiniti G37 Sedan (2007-2010)
- Infiniti M35 (2003-2009)
- Infiniti M45 (2003-2009)
- Infiniti FX35 (2003-2008)
- Infiniti FX45 (2003-2008)
- Infiniti QX (2004-2010)
- Infiniti Q40, Q50 Sedan ONLY (2005-2014)
- Infiniti Q60 Coupe ONLY (2003-2013)
- Infiniti Q70 (2005-2014)
- Infiniti QX60 (2012-2014)
- Infiniti QX56, QX70, QX80 (2004-2014)
10. Warranty and Support
For warranty information or technical support, please refer to the seller's policy or contact Loddery customer service through the platform where the product was purchased. Keep your purchase receipt for warranty claims.