30-11-2016 | A plant controls the color of an RGB LED. The LED lightens a ball of milky glass or selenite.
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![BIO-Light [160325]](https://cdn.xingosoftware.com/elektor/images/fetch/dpr_1,w_800,h_340,c_fit/https%3A%2F%2Fwww.elektormagazine.com%2Fassets%2Fupload%2Fimg%2Fpublic%2Foriginal%2Fbild006.jpg)
