Originally Posted by
adamrice
I heard back from Ian Walker. He didn't address my question about the moth effect directly. Here's what he said:
Thanks for posting.
On this forum, I have often commented that flashing lights, you can't get any depth perception where you can with constant on lights. But others on this forum have blasted me for saying anything that they perceived to be so stupid. The person you contacted did not specifically agree with my thoughts, word for word, but his comment (pasted):
....I suspect stationary lights are best for drivers knowing exactly where a cyclist is and how they are moving, and flashing lights are best for attracting attention to the cyclist in the first place...
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sounds a lot like my thoughts. That is why I often use red rear facing flashers during daytime, and especially in fog or overcast conditions. But at night I only use constant on.