I bought these to replace the dim brownish halogen bulbs on my 2015 Mercedes GLK350. The stock halogens were so dim which was ok for running lights but since it doubles as a high beam it was totally ineffective as high beams Replacing the stock halogens with the AUXITO H15 LEDs was realtively easy and straightforward.
These LEDs are much whiter, crisper, and significantly brighter than the stock halogens such that perihperal lighting as well as range is dramatically improved. No concerns about quick flashing or error light with this swap. I totally recommend these