Have you considered the Outbound lighting road edition? Absolutely glarefree, albeit not officially StVZO certified. The only downside: not self contained. Beam width is more or less the same for Ixon space and OL Road (i compared them). It costs 200 USD (140 USD the lamp head only) and has more output at 1500 Chiplumens, while the ixon space has 500 lm out the front (measured in an integrating sphere for a german bike magazine). Max lux value is a bit higher for the Ixon Space (150 lx) than for the OL Road (110 lx). The OL Road has a bit warmer light colour than the space. The OL Road has a flashing mode (not a crazy flash frequence, more a slower one), while the space does not have this (not stvzo compliant)
Since it is US made, buying/shipping is easy and fast for you.