Solar Paper is the world’s smallest 2,5W – 10W solar chargers, that when it is sunny it can charge an iPhone 6 in about 2.5 hours. It has the similar charging speed as a wall charger.
The designers explain: “We have the world’s top technology making highly efficient solar panels. It means that it can generate more energy than any other solar panels that have the same size.”
While the volume of competitor’s solar charger is 16.5cm x 22.9cm x 3.8cm and weight is 460g, Volume of Solar Paper’s is 9cm x 19cm x 1.1cm and weight is 120g. It is only 13% of the volume and 26% of the weight of the competitor’s solar charger.