Nuts And Volts Magazine Feb 2008: front cover showcases led flashlights.

L.E.D.

Enlightened
Joined
Aug 4, 2001
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984
Location
Arizona
I read this in my magazine a little while ago. Using only 5mm's, but they got some pretty cool ciruits in there. The issue before that had something interesting though, an LED (K2) based TRUE strobe. Not your regular flashlight strobe which can't really freeze high speed objects, but a strobe with REALLY short quick pulses.
 

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