1[Durable Material] Adopt A grade polycrystalline silicon solar panel, EVA lamination process, durable, light weight, easy to carry, easy to use, to meet your various need. 2[Stable Current] High conversion rate solar panel, intelligent circuit, the voltage can always be maintained at 5V when USB output, matching output stable current, will not damage the charging equipment. 3[Compact And Waterproof] The 5V solar panel is small and compact, easy to carry, waterproof, can withstand all weather conditions, and is perfect for emergency charging for outdoor activities. 4[Multipurpose] This solar panel is widely used in speakers, car fans, mobile phones, watches, flashlights, power banks, tablets, GPS, cameras, etc. 5[Widely Application] Can be used for outdoor emergency charging. Highpower solar panels can be used instead of AC adapters. As long as the 5V charging port can be used, 5V solar panels can be used.