1. Cranked 1 minute, it can shine for about 40 minutes.
2. Charge for mobile phone, 1 minute wind-up can make the phone use for 2-5 minutes, (According to phone charger's type)
3. Placed for a year, it generates electricity by winding-up, and still works normally.
4. Ideal illumination tool, for family life, travel, outdoor activities and car standby.especiallly emergency.
Built-in lithium cell: 3.6V / 40 m A.
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