I did not get to ride with the group I hoped to last night so I went to my normal club training ride. I came in last and the guys in the parking lot were amused to say the least. But they said that the lights were highly visible. They are wide enough that they are visible from the rear unless you are exactly straight behind the bike. One guy said it reminded him of the lighted tandem in the movie, Men In Black, going by with the lights on. That might be a little bit of an exaggeration, but I think these are a winner and well worth the money.
I will give more impressions in the next week or two. My social Tuesday night group moves their start time back so that we ride in the dark for half the ride to get used to night time riding again in preparation for winter night time rides. Judging from the reaction that I got from the training group and my reputation as "Dwight the Light" preceding me, it should be pretty interesting and amusing.