Self charging LED cactus

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Here's a cactus that lights up when it is dark, MAKE Flickr photo pool member Mleak writes - "First electronics project. During the day, when the (living) cactus gets sunlight, it charges itself up. In the night, when there's no more sunlight, the cactus lights itself with an LED. - Link.

[Read this article] [Comment on this article] Source: MAKE Magazine

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