Mr. Peloquin suggested that using the wind turbines to charge a cell phone or power a small radio would be more appealing than lighting an LED.
Suggested looking at Adafruit Minty-Boost system( https://www.adafruit.com/product/14 )
might be one possibility-see https://learn.adafruit.com/minty-boost/parts-list for parts. The LT 1302 IC can boost 3V voltage to 5.0V( 600 mA) or 12.0V(100 mA).
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