Philips CrystalVision ultra is for drivers seeking to personalize their vehicles. With CrystalVision ultra, drivers enjoy a look that is unmatched in a DOT compliant bulb. CrystalVision ultra provides a bright white light on the road at night, while its blue-capped bulb creates a cool blue effect in the headlight in the daytime. This is the perfect choice if you're looking to add style to your vehicle.