On Wednesday, January 25, 2017 at 12:00:01 PM UTC+13, Andrzej Kobus wrote:

Saying that LED strobe would sure help under a cloud street. In that situation even a bicycle strobe would help.

I'd be happy just to increase my chances in low light and high on collision risk situations like flying under cloud streets.

To say that, a conspicuity light MUST be effective in bright sunlight in order to be worthwhile, is missing the point.