LED flashlight recharged by hand-turn

1. It doesn't need any extra battery or solar energy. Only need that you take several seconds to  turn it several turns. The led light will turn on for a long time. 
 
2. Comparing with solar flashlight, it can be used at any time, at any place (except in water). Whether you are in rainy days, in the evening, at home, at dark places.   While for solar flashlight, it can not be used in rainy days, in the evening etc. And you need to put solar flashlight under the sun for a long time to recharge the batterys.

Better than solar flashlights:

LED flashlight recharged by hand-turn

LED flashlight recharged by hand-turn