Well, I have read and heard about these headlamp bulbs. The Phillips Night-Vision + 50. About how they are so much better than Silvana's SilverStars. Received a coupon, from my sisterinlaw for half off. So, I bought a pair. All, I can say is right now. Is that , THEY are DEFINITELY better. I changed the passenger side first. Turned on the headlamps and couldn't believe the difference!!! The passenger side was a WHITE color, while the drivers side, (being the original halogen) was a yellow in color & clarity. To confirm my observation, I went in and coxed Mrs. PK too come out and look. She observed the same. As of right now. I can't give a night report about these headlamp bulbs. But, I can Tuesday morning. (Wednesday, down-under) I am curious if they are so much better...............