Xenon HID Ballast Headlight Control Unit Module - A71177E00DG A71154400DG D1S

Xenon D1S 35W HID Ballast Control Module

Replacement for A71177E00DG / A71154400DG

Product Description

Professional aftermarket replacement Xenon HID ballast designed to replace selected factory-fitted 35W D1S headlight control modules.

This ballast supplies and regulates power to the Xenon bulb, helping maintain stable headlight operation and consistent light output. It is designed as a direct plug-and-play replacement where the original ballast and connector match.

Please note that this is a high-quality aftermarket replacement and is not an original OEM unit.

Product Features

• Direct replacement for compatible factory Xenon HID ballasts
• Plug-and-play installation
• Integrated digital CANBUS decoder
• Stable and regulated power output
• High-voltage and low-voltage protection
• Electromagnetic interference protection
• Anti-shock aluminium housing
• Water-resistant construction
• Designed for 35W D1S Xenon headlight systems
• Suitable for left- or right-hand headlight applications where the same ballast is fitted

Technical Specifications

Product Type: Xenon HID Headlight Ballast / Control Module
Bulb Type: D1S Xenon HID
Power Output: 35W
Input Voltage: 9V–16V
Housing Material: Aluminium
Estimated Service Life: More than 5,000 hours
Fitment Type: Direct replacement
Condition: New

Compatible Part Numbers

This ballast may replace the following references:

• A71177E00DG
• A71154400DG
• 35XT6-B-D3/12V
• 10R-034663
• 10R-044663

Always compare the complete part number, connector and physical design with the original ballast before ordering.

Common Vehicle Applications

Compatible with selected Xenon headlight versions fitted to:

Hyundai

• Hyundai Santa Fe — selected 2013–2014 models
• Hyundai Sonata — selected 2014 models

Jaguar

• Jaguar XF — selected 2012–2014 models
• Jaguar XFR — selected 2012–2014 models

Land Rover

• Range Rover Evoque — selected 2012–2014 models

Tesla

• Tesla Model S — selected 2012–2014 models

Ford

• Ford Focus Mk3 — selected 2011–2012 models

Important Compatibility Notice

Vehicle model and year alone are not enough to confirm fitment.

Before purchasing, please compare:

• The complete part number on the original ballast
• The electrical connector
• The ballast shape and mounting points
• The Xenon bulb type
• The original headlight specification
• The vehicle VIN where possible

Compatibility may vary according to production date, headlight type and market specification.

Package Contents

• 1 × 35W Xenon HID ballast control module

Please Note

• Xenon bulb is not included
• Mounting screws or hardware are not included
• Professional installation is recommended
• Coding is not normally required, but this may depend on the vehicle and headlight system
• Ensure the headlight is properly sealed after installation to prevent moisture damage