The following photovoltaic solar backpack not only has the beauty and strength, but at the same time is a backpack of black technology.

In terms of appearance, this solar panel backpack is not only very particular about the materials used, but at the same time the design style is definitely a bonus. It is not only very simple and capable, but also has cutting and three-dimensional skills. It is to make such a voltaic backpack exude a different temperament.

Compared with other bags, this solar powered backpack not only achieves a good and obvious improvement in comfort, but also allows people to free their shoulders when they are carrying them, and can also release pressure to a certain extent. This kind of detail shows an extraordinary quality. It can be said to be a best solar backpack tailored for people who travel for a long time and travel.

Of course, this solar panel bag is a functional backpack after all, and the most important point is the experience in use. This backpack is not only equipped with a thin-film solar chip, but also a walking power bank. This backpack uses a hidden solar panel design. Not only the conversion rate is very high, but the efficiency of power generation is also extremely fast, and it can be charged only by solar energy. According to the usage record, the efficiency of such a backpack is quite high when charging, which is comparable to ordinary chargers. Even if it is charged while walking, this backpack can still be used perfectly, no matter what kind of experience it is, it is very in line with the standards people need.

Of course, as a solar-powered product backpack, this waterproof backpack could prevent rain and water. In the long-term use process, it is not difficult to find that this travel backpack is not only waterproof, but also easy to splash with a lot of water. Of slipping. In terms of power generation, these configurations have not seen obvious fluctuations. It can be seen that high efficiency is not a gimmick. This backpack is also truly stable and has strong absorption. 

And also, it has the fuctional of a normal backpack. Net wieght 1.2kg,  easy to carry, with multi layer large capacity 20L(  can fit 17 inches laptops, tablets, books, personal clothes), the  dimension is 31*16*47cm, suitable for outdoor hiking activities and business trip   or daily use 

Therefore, we could say that it’s the best bluesun solar backpack in 2021.