DRL's by definition are made for Daylight Running. They give you visibility. This becomes even more obvious with LED headlights which are very directional and produce little scatter.
DRL's on M/C are still a bit of a grey area here (the law has still to be modified to reflect the option - unlike cars which are covered) but the BMW's fitted with them ex-factory are (imo) more visible than earlier similar models running on headlights.
In Bright sunlight (imo) it makes no difference - any sun reflecting of a screen or chrome is MUCH brighter.
@leatal - I would like to see similar photos taken outside from a distance of at least 50 feet. ime - what looks good in the garage does not always replicate outside on the street. But Those look good close up.