Sealed Beam Headlight | 4x64x6 Sealed Beam Headlight: Bright, Reliable, and Ready for the Road Upgrade your vehicles lighting with the 4x6 Sealed Beam Headlight, designed to provide both high and low beam functions for optimal visibility. Whether you're driving at night or navigating through fog, this headlight delivers superior performance and reliability. Sold as a single unit, most applications will require two units for a complete set. Available in classic Chrome or bold