Thanks for the posts mechGon! Some areas of my own commute look like that but I'm not about to take pictures while driving in it!
At some point I might clamp a tripod on the handlebars, but still haven't found a video camera that will let you set a manual exposure anyway. So I'm still using stills and manual modes for comparisons.
Can't figure why there aren't more people posting beam shots. There's certainly no reluctance to post BiKE pictures on this forum! Could it be that some of those glowing reports about lights are actually posted by employees of the companies they are praising??