Was looking on ebay and all I found was stand lights by ACDelco, GE, Wagner, Sylvania, and then there are a few of the Xtravision versions. Looking at the specs they are just slightly whiter, and the beam pattern might bit a bit better. But that's all I found. The light size appears to be an "American only" thing, so it's no wonder there's no Euro version available like the Ecodes from Hella.
Might be worth installing the Xtravisions with relays so they get full alternator voltage instead of the 11-something volts that survives the path through the headlight switch. One $14 "Bosch" relay would easily carry the load of both low beams. Run a wire from the battery to the relay, ground the relay via it's mounting screw, send out a wire to each headlight, and just bring one of the headlight wires to the relay so the relay comes "on" when the headlight switch is pulled out. Since you're there, you could relay the hi's too for another $14 (or less).