Vktech 3 LED Dynamo Wind Up Flashlight Hand-pressing Crank NR No Battery Torch High tech, ultra-bright LED, operation life up to 100,000 hours never need replace Perfect for outdoors use, simply keep it in your car, RV, boat and with your emergency kit Works on a new technology of pressing handle with your hand LED Torch adopt advanced technology of LEDs emitting level of 3 fluorescence tube Visible distance up to 5 meter, super bright white light