product 1.High Conversion RateThe solar charger power bank has a high photoelectric conversion rate, which can provide continuous power supply even on cloudy days. And, the 10w solar panel folding bag can be used to charge mobile phones, power banks, etc. 2. [Widely used] The external battery pack of the solar power bank is made of high-quality materials, which are environmentally friendly, durable, waterproof, and highly sensitive. And, the portable solar cell phone charger is suitable for outdoor activities, emergency and outdoor work. 3.Outdoor Power CompanionThe solar charger is small in size, light in weight, foldable and easy to carry, it is very suitable for camping, hiking, fishing, etc. 4.Foldable and portable: The foldable design makes the solar panel charger smaller and easy to carry around;