Pay attention to the shape and location of the LED emitter. If it's somewhere other than where the filament of the OEM incandescent bulb is, you'll lose the beam shape engineered into the reflector. Most likely impact is that you get extra light, but it doesn't go anywhere helpful. Maybe it'll go into the eyes of oncoming drivers. Glaring them is bad IMO.
Current: 2020 R1200 GSA Low
Previous: 2016 R1200 GSA Low (traded); 2015 R1200 RT (traded); 2012 K1600 GTL (traded); 2011 R1200 RT (totaled, RIP)