1.With 4 super-bright LEDs and no battery required.
2. Cranked 1 minute ,it can shine for about 30 minutes.
3. Placed for a year,it generates electricity by winding-up,and still works nomrally.
4. also charge for cell phone.
5.Ideal illumination tool,for family life,travel, outdoor activities and car standby.especiallly emergency.
6. Energy saving and no pollution.
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