HOW TO – Build a 1,024,000 mcd portable light

Energy & Sustainability

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

Here’s how to build a very bright, very low power portable light for less than $100, the Maker uses this on his bike. Link.

current: @adafruit - previous: MAKE, popular science, hackaday, engadget, fallon, braincraft ... howtoons, 2600...

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