So i installed the 20 watt ones in my e90 lci with xenons. It was a royal pain in the ass to install. Took at least two hours and my fingers are all scratched up. On the passenger side I had to remove the intake box to gain access.
The one thing I didn't like about these is that the fins screw in to the LED bulb body. So on the driver's side when you tighten the bulb into the light housing, you rotate it opposite of fin thread so the fins become loose during tightening. I didn't want to jam the aluminum thread out of fear of stripping it. After several tries I just did the best I could and hopefully it'll hold. Eventually I may end up using thread glue/lock.
The brightness is pretty good at dusk and in the dark and matches my xenon color temperature much more than oem. But in direct sunlight I can see the inner rings and barely the outer ones which is what I expected. They are nowhere near e92 lci halos
Overall I'm pretty happy for the price and the 1 year warranty.