It's simple and easy to convert LWB Euro tail lights to U.S. tail lights (and vice versa). The only difference between U.S. and Euro LWB tail light housings, other than the lenses, is the U.S. version has a "city light" bulb mount and large reflector to the outside and the Euro version does not. Simply add the reflector to your Euro housings along with U.S. lenses and you are 100% correct.
The question has always been - where do you get the reflectors?
This is the type of product that you will find at AC and just about no where else. We restore a lot of turn signals and tail lights and as a result we have many spare components. Be sure to check with us before throwing something out.