Do these come with reflectors?
The shimano website specifies the SM-PD40 reflector set, which does not appear to be available separately?... http://www.shimano.com.au/media/techdocs/content/cycle/SI/Pedals/SM-PD40/SI-PD40C-ENG_v1_m56577569830606548.pdf
These pedals don't come with any reflectors as standard. Usually the shoes that you buy to go with such pedals; e.g. Shimano M077 SPD MTB Shoes, are adorned with reflective detailing. I understand you are after explicit reflector sets though and it seems there are suppliers out there in Europe if you can find them (look up Shimano 520 SPD reflectors, they *may* be compatible, Germany seems to be a key place to purchase these items from). Good luck and happy trails!