Highlights:
● 2 ways power supply: Charged by solar energy or Hand shaking
● Hand shake flashlight: Built-indynamo， Rotate 120 revolutions at a constant speed per minute can lasts for 10 minutes
● Solar energy charge: Hand cranking is so tired that use solar power as the alternative
● No need to replace batteries or bulbs: Easier taking around than battery powered flashlights
● 3.6V 40mAh rechargeable battery: Come with 40mAh Li-ion battery， can be charged more than 800 times under normal use