It is conveniently charged, simply by hand shaking it for five minutes, which could give you 30 minutes of light.

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Multifunctional Worklight
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Product Specifications:
This light is perfect for outdoor work. It is conveniently charged, simply by hand shaking it for five minutes, which could give you 30 minutes of light. It can also operate on solar energy, with four hours of charging resulting in six hours of power. Certainly, battery is the major way to make it work.

* Battery type: 4.5V 150mAh
* Charge 12 hours for 12-15 hours of light (front light) or 4-5 hours (work light)
* Front light: 0.25W super bright LED+4 LED, 15-20Lm, 10m illumination distance
* Work light: 18 super bright LED, 1.25W, 70Lm, 3m illumination distance