{Headliht Bulb} Encell H1 Halogen Replacement Bulb 5000K,(Pack of 2) Provides the same Original Equipment quality Size:55*(10-25)*55 MM,Glass material: quartz DOT (Department of Transportation) compliant for street legal lighting 100% Waterproof and dustproof. Resistance to heat and aging. Bright and clear, high performance, better reflection of road markings.