Good, but short of sold performances ...
Sun Giant LevinTM 12000mAh Solar Charger + Rain-resistant, Lens Dust and Anti-Shock Double USB External Battery for iPhone 6 6More 5 5S 5C 4 4S, iPod (Apple Adapters not included), iPad, Samsung Galaxy S4 S5 S2 S3 Note2 Note3, Most types of Android Smart Phones, Windows Phone and Several Other Devices (Blue) (Electronics) 3
Sun Giant LevinTM 12000mAh Solar Charger + Rain-resistant, Lens Dust and Anti-Shock Double USB External Battery for iPhone 6 6More 5 5S 5C 4 4S, iPod (Apple Adapters not included), iPad, Samsung Galaxy S4 S5 S2 S3 Note2 Note3, Most types of Android Smart Phones, Windows Phone and Several Other Devices (Blue) (Electronics)
Sector load 18h to fully charge (very long); 5 times recharge an iPhone 4S (which represents about 7500 mAh and not 12000!); 3 hours to charge an iPhone 4s; Solar charge 8 can charge an iPhone 4s to 40% and a week to take out the light (alternating sunny and cloudy days) has reloaded half. Furthermore the adapter socket provided Apple does not work, but its own cable you can use Apple instead. Record: allows an autonomy of a charging week of a type of smartphone iPhone 4S on a one full charge per day (5 refills through the initial load on mains + 2 through solar) but still falls short performance in terms of mAh sold. +: Solar works well for troubleshooting. -: A flat for the slowness of the same charge on sector and the considerable weight roaming (310gr).