Check out this cool universal & usb solar-cell tree charger by Vivien Muller. You can use it to recharge your cellphone, camera, or whatever, because it has 54 tiny photovoltaic panels and an internal battery that stores energy during the day. The modular parts are connected and can be rotated infinitely creating a different tree for your favorite sunny spot at home. Unfortunately, this design is only a concept, let’s just hope it will come into production soon! [DVICE]
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