Xenon Ballast Control Module D1S For Opel Astra J Insignia

Restore steady illumination and eliminate xenon slow-start or erratic flickering with this EIFETT D1S-compatible Ballast Control Unit. Designed as a direct aftermarket replacement, this module regulates voltage delivery to D1S xenon headlight bulbs, solving common lighting failures such as delayed ignition, dim beams, or total headlight loss. Constructed with a compact PVC housing and weighing only 0.2 kg, it mounts securely in the original location without modifications. Each unit is 100% factory tested to ensure stable power delivery and consistent UV/visible light output. Cross-referenced to multiple OEM references including 1Z0 941 641 B, 5M0 907 391, 13278005, 12 32 335, and Bosch/Hella codes, it delivers reliable performance for pre-facelift Opel Astra J and Insignia models, alongside select VW, GM, BMW, and Mercedes applications.

Benefits & Practical Tips

• Re-establish crisp, full-intensity night visibility by bypassing degraded xenon ignition circuitry.
• Confirm your existing headlight assembly uses D1S lamps and matches the connector pin layout before swapping the unit.
• Protect exposed connectors from road moisture and brake dust; a clean, dry interface extends module lifespan significantly.

Product Specifications

• Bulb Type Compatibility: D1S Xenon
• Housing Material: PVC
• Net Weight: 0.2 kg
• Manufacturing Status: 100% New, Factory Tested
• OEM Cross References: 1Z0 941 641 B, 5M0 907 391, 13278005, 12 32 335 / 1232335, 5DV00972000, 63126937223
• Vehicle Application: Pre-facelift Opel Astra J, Opel Insignia, Vauxhall equivalents, plus compatible VW, GM, BMW, and Mercedes platforms

Package includes:

• 1 x D1S Xenon Ballast Control Module

Important Reminders

This is an interchangeable aftermarket component and is not an original manufacturer part. Professional installation is recommended, and no step-by-step guide is provided. Always disconnect the vehicle battery prior to handling headlight wiring to avoid electrical shorts or sensor damage. Verify your chassis details against listed model years to confirm correct fitment.