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The original design had a magnet with a hole in the center - I epoxied a small loop of wire to the magnet I had | by mmechtley
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The original design had a magnet with a hole in the center - I epoxied a small loop of wire to the magnet I had

www.instructables.com/id/LED-Bike-Helmet/

biphenyl.org/blog/2007/11/28/led-bike-helmet/

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Taken on November 28, 2007