Some of them even take a very long time to charge the gadgets.
Each single unit of the Solar Paper outputs around2.5 Watts.
The magnetic surfaces also help users to stick them on some metallic surfaces while placing it outdoors.
For the 7.5 W and 10 W the cost might be a bit more.
The retail price would increase after the Kickstarter campaign and is expected to hit $120.
Check the below video:
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source: www.techworm.net