OEM direct replacement HID ballast for Range Rover, Jaguar, Hyundai, and Ford Focus. Replaces A71177E00DG, 10R034663, and A71154400HQ. 100% plug-and-play. 2-year extended Australian warranty.
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This OEM replacement ballast replaces the A71177E00DG, 10R034663, and A71154400HQ headlight control modules — as fitted to Range Rover, Jaguar XF, Hyundai Santa Fe, Ford Focus MK3, and Tesla Model S from 2011 to 2017.
Plug straight in — no coding, no rewiring, no modifications required. Restores reliable, flicker-free operation to your factory HID xenon headlight system.
This is a multi-volt ballast — compatible with both D1S / D1R (85V) and D3S / D3R (42V) HID Xenon globes. It automatically outputs the correct voltage for whichever globe type is installed.
Common symptoms of a failed ballast: one headlight flickering, failing to ignite, or a dashboard headlight warning. If the globe has been ruled out, the ballast is the most likely cause.
1 x Ballast unit. Ballasts do not need to be replaced in pairs — only replace the failed unit.
Key Features
OEM Cross-Reference Part Numbers
Vehicle Compatibility
Always verify by matching the part number on your original unit before ordering.
Not listed? If your original ballast carries one of the part numbers above, this is the correct replacement. Email a photo of your ballast label to [email protected] and we will confirm fitment.
Is It the Ballast or the Globe?
Before replacing the ballast, swap the working globe from the opposite headlight into the non-working side.
If the light works with the known-good globe, the original globe has failed — not the ballast.
If the light still fails with a known-good globe installed, the ballast is the cause and needs to be replaced.
Flickering briefly before shutting off, or taking several attempts to ignite — this is a classic ballast fault, not a globe fault.
About Pro Vision Lighting™
Pro Vision Lighting™ has over 20 years of experience supplying OEM automotive lighting to Australian motorists, workshops, and auto electricians.
Fast Express Delivery, 2-year warranty, and expert support by phone or email.
BULB TYPE: D1S, D3S HID Xenon.
APPLICATION: Direct replacement for factory A71177E00DG / 10R034663 HID Xenon ballasts.
COMPATIBILITY: 100% Plug-and-play. Direct replacement for Range Rover, Jaguar, Hyundai, Ford Focus, and Tesla.
POWER: INPUT: 12V DC. OUTPUT: 35W RMS — 85V/42V AC.
CONSTRUCTION: High-grade aluminium casing for optimal thermal management and durability.
SUPPLIED AS: 1 x Unit (Each).
DELIVERY COSTS: Price includes Express Satchel Delivery — generally 1–2 business days Australia-wide.
WARRANTY: 2-year extended warranty.
Will this fix my flickering headlight?
If the flickering is caused by a failing ballast — which is the most common cause — replacing the unit will resolve the issue. Swap the globe from the working side first to rule out a globe fault before ordering.
Do I need to program or code this ballast to my car?
No. This is a direct plug-and-play replacement. Once connected, it communicates correctly with your vehicle's ECU without requiring dealer coding or programming.
What vehicles does the A71177E00DG fit?
The A71177E00DG fits the Land Rover Range Rover (2012–2014), Land Rover Discovery Sport L550 (2017), Jaguar XF/XFR (2012–2014), Hyundai Santa Fe (2013–2014), Hyundai Sonata (2014), Ford Focus MK3 (2011–2012), and Tesla Model S (2012–2014). Always verify by matching the part number on your original unit.
What globe types is the A71177E00DG compatible with?
This is a multi-volt ballast — it is compatible with both D1S / D1R globes (85V output) and D3S / D3R globes (42V output). It automatically outputs the correct voltage for the globe type installed, making it one of the most versatile OEM ballasts available.
Do I need to replace both ballasts at the same time?
No. Unlike HID globes, ballasts do not need to be replaced in pairs. Only replace the unit that has failed. If both headlights are affected, add 2 to your cart.
How long does delivery take in Australia?
Express Satchel delivery generally takes 1–2 business days Australia-wide. Delivery is included in the price — no hidden freight charges.
What warranty is included?
All ballasts from Pro Vision Lighting™ come with a 2-year extended Australian warranty and a money-back guarantee. Free expert advice is available at 1300 775 359 or [email protected].
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