... pops out of its position on the rear of the flashlight and, with the LED lights turned off, just 60 seconds of turning the hand crank provides up to one hour of light. That said, it's not necessary to wind up Dynabrite for a full 60 seconds. Just crank it for a few seconds to produce immediate power if the LED's are dim. Once powered , just collapse the hand crank and snap it back into its tuck away position - it's that easy! What's more there's 3 light intensities to choose from, with a simple click of a button either 1, 2 or 3 LED bulbs can be lit.When it runs out of power just wind it up again for more light. Kids really like this and it's easy for them and adults to operate. The side, rubber hand grips make it comfortable to hold and distinctive to identify and operate in the dark. The permanent, re-chargeable, lithium battery is estimated to provide up to 500 re-charges for one hour, once a week use for up to 10 years. The manufacturer provides a one year warranty
We've been using the Dynamo re-chargeable LED flashlights on camping trips and it's truly reliable, not to mention unique. Hand held the rubber side finger grips make for a sure and comfortable feel. Great for camping and emergency use the hand crank rechargeable DynaBrite flashlight provides hours of reliable use; never be concerned about dead batteries. Dyna Brite's re-chargeable lithium battery and permanent LED bulbs means it's a maintenance and worry free light source. The fold-out collapsing hand crank 
