TYC 20-6778-90 Buick Lucerne Driver Side Headlight Assembly Meets or exceeds DOT/SAE standards, with particular consideration for photometric and safety compliance Special coating on the lens surface prevents hazing and fading, ensuring proper illumination and operational safety Rigorous and accelerated cycling tests to ensure product service quality and durability OE-comparable mounting provisions ensure drop-in precise fitment OE-comparable harness (no pigtail connector) for hassle-free installation