IIRC Valeo make lights for VW and these lights where made for VW thats why these have VW part numbers and logo's. They where never made for the UK market, hence why the fog/reverse light swap has to be done, but not sure if they was an option or standard fit on LHD cars.
As for LED rear lights in german I have no idea lol, but LED golf 5 or v kicks stuff up on ebay but no valeo's on there that i can find atm