Installed in my 2003 Trailblazer. It is like a day-and night difference from the stock halogen bulbs. These lights are very bright, and high-beams throw light way down the road. I can see signs and also the edges of the road are nicely lit, to see animals, etc. I did not need to adjust the headlight angle, and I did not get oncoming cars flashing their brights at me when I was on low beams. I installed them in December 2025, I'll let you know in a year how they lasted.....