Met my expectations. It goes smoothly on the Xenon kit 55w. The color chosen is perfectly white 6000k. The 5300K has a white color very close to the light emitted by the sun. The color of the light very well, but the 5300K version brings improved visual comfort (better rendering of outstanding color), while the 6000k are rendered much more fun aesthetic and modern. But their light efficiency is greatly reduced in city lit or does not completely dark. I'm still very satisfied.