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is back-ordered and will take a few days to ship.
Colour Night Joule Thief is a color version of popular Night Joule Thief. Combining voltage booster (Joule Thief) circuit and color changing LED, you have a mini mood light that uses only one AA battery.
Detailed information and building instructions are here: http://www.instructables.com/id/Colour-Changing-Night-Joule-Thief/
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