I pulled the trigger on these guys a short while back and finally got them installed.
The smoked color is pretty neutral and blends in with Space Grey perfectly. Illumination is amber through what looks like 3x LEDs.
They appear well built and have the foam backing, but the only part that I've got a gripe about is the connector which you'll see below. I would have preferred either the proper connector, or leads that were a little easier to install into the OEM connector. But with a little encouragement via some needle-nose pliers, they were installed and tested in less than five minutes.
Brightness seems acceptable to me during day time, I'll have to check them out tonight and see how they do in the dark.
$49.99 @
http://www.e92-lighting.com/bmw-acce...ed-sidemarker/