Xenon 5000K, which is indeed 5000K. This means that they are approximately 15% whiter and brighter than the factory ones, which are typically 4150-4300K in most cars. Don't expect to see something completely different and impressive, but it is understood that they emit a clean white light. The hint of blue is minimal because then it would mean that they should be a reliable 6000K+. However, higher K values reduce the objective brightness. The price of 95 euros each is not negligible, and if you are not focused on absolute detail, replacement xenon lights can be found for less than half the price. The installation was not completely simple, but it can be done after a little research depending on the car, and BE CAREFUL not to touch the bulb with bare hands to avoid it burning out quickly. As for the lifespan, it is stated up to 2500h in the specifications, and time will tell if it is true.