WakaWaka Power - Solar Charger, Yellow  (Older Model) Every purchase helps fund the WakaWaka Foundation's efforts to end energy poverty and bring light to the 1.2b people in the world without electricity High efficiency solar panel converts the sun into power for USB devices and light for many uses About the size and weight of a smartphone Fully charges a smartphone in about 2 hours and provides up to 150 hours of light on a single charge Flexible positioning: table top, on a bottle, hanging from the ceiling