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How does the E-Star's hand crank work?Updated 2 years ago

The hand crank on the E-Star flashlight allows the unit to be operated even if the battery has dead or is not installed at all. The crank allows the conversion of manual muscle power into electricity using the built-in super capacitor. After only 20 seconds of squeezing the crank, you will be able to use the E-Star on low for about 2 minutes on the low setting or up to 50 seconds on the medium setting. This action can be repeated indefinitely!

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