These light bulbs are amazing. They are of very high quality, and easily crush other brands in that department. The aluminum machining for the heat sink is well done, no imperfections. Another thing to add is their brightness. These are significantly brighter than your factory halogens. It has an even beam spread and are comparable to the stock beam pattern. They can really update the look of your car, it makes it look a lot newer. Another thing to add is the silence of the fans. They are way more quiet than other brands of which I have tried. Overall, these are amazing lights and I don’t think that they could get any better.