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Title: Xenon Headlight Ballast Control Unit D1S/D3S  
Category: Automotive Electronics  
Brand: OEM  
Description: Replacement ballast module for D1S/D3S xenon headlights, engineered for precise fit and reliable performance.  
Details: Supports 12V input with 85V AC output, 35W power, compatible with 2008‑2014 BMW, Cadillac, and other select models.

Price is $