I also ordered mine from deutscheautoparts for my 2015 A3. The Oem audi ones from deutscheautoparts was actually my 3rd set I tried and the best ones as they should be.
The first set I got was a cheap set for aliexpress that showed the rings and the "audi" logo, but it had a purple-ish tint to it. So I then ordered the windfire set from amazon
https://www.amazon.com/Wind-Fire-M00.../dp/B00IX5MRD2. I liked this set originally because it uses logo chips that you can replace if you want something other than the rings projected on the ground I liked using the arcade pacman ghost logo with this set. But the downside with this set is that the light beam projector is strong and gets so hot that over a few months the logo faded out on both door sides (which probably explains why audi's oem version has a heatsink on it that your can see from the photos posted above). Windfire offers a free lifetime replacement on new logo chips but I decided to go with the OEM ones and so far I'm the happiest with these ones. The logo is really crisp & bright and looks a lot more premium than the other versions I bought.
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