Combined with CIGS flexible thin film solar cells, Sun harmonics’ backpack is not only a traditional bag used for containing stuffs, but also smart solar charger that is able to provide electricity support for digital devices conveniently. The backpack is an ideal equipment for people often taking part in outdoor activities like traveling, expedition or camping. Different watts of bags are offered in order to meet your various needs. Apart from those styles existing at present, the color of the backpack is customizable so that you obtain the style suiting you most.

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