F.Dorla 20000mAh Power Bank Solar Charger Waterproof Portable Phone Charger External USB Battery Charger Built-in LED Flashlights with Compass for iPad iPhone Android cellphones High Capacity: Built-in 20000mAh high capacity polymer battery equipped with a compact solar panel, which could recharge the battery itself under sunlight, eco-friendly and ideal for outdoor use. Dual USB and powerful LED light - Makes it easy to charge two smartphones simultaneously or a tablet at full speed.2led lights can be used as flashlight with Steady-SOS-Strobe mode. Five pilot indicators show the status of battery charger timely. Green light on when charging by solar, blue light on when USB charging. Superior portability design: Easily hang it on your bagpack with the inluded hook, hands-free on the go. Build-in Lithium Polymer battery cells, anti-explosion, lightweight, compact and reliable. Long lifespan with more than 500 recharging times. Universal device compatibility/ Dual USB Port: Creative solar phone charger for Apple Watch, iPhone 6 Plus 6 5S 5C 5 4S, iPad, iPod, Samsung Galaxy S6 Edge S5 S4 S3 Note 5 4 3, LG G4 G3, Nexus, HTC, Gopro Camera, GPS etc. and charge 2 devices at the same time External battery charger with solar panel can recharge by solar or outlet. But please do not take solar as main power source.It's subject to sunlight intensity and panel conversion rate, which may take long time to charge