If like me, you do not want to put 800 euros in Xenon headlight option proposed by Citroën, buy these bulbs ... We have two C4 Picasso Exclusive identical, we changed the original bulbs by such organizations on one of these two. Result final: the pub is right, 20% white, and 110% more light. I confirm the difference is clearly seen when the two are one next to the other. On the road, visual comfort and more .... I put 4 stars because I expect to see the life.