Joined: Jan 2009
Posts: 44,115
Likes: 6,327
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
The efficacy of blinking bike lights has not been proven, as far as I know.
The German government, which heavily regulates bike lights, forbids blinking lights. The lights that meet with their approval work very well. I'm very happy with my Euro-spec lights.