Joined: Jan 2009
Posts: 44,338
Likes: 6,637
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
Yes, defective is my guess, too. It sounds like the light is powered by the capacitor rather than the input voltage. When I start my bike at low speed, the light flickers for reasons I hope are obvious and I don't have the energy to explain.