Energy Efficient

Solar backpack absorbs solar energy through solar panel and then turns solar energy into electric energy, which will be stored in the storage battery. It can charge different specification mobile phones through corresponding connectors. It is...

Have you ever met this kind of situation, when you go-off then you find that there is no power in your cell phone, and most of the time, your digital camera was run out of electricity just when you want to take some pictures, it would absolutely...