2. Crank dynamo powered
3. Mobile phone charger is available
4. Powered by 3.6V 40mAh Rechargeable Lithium battery
5. Runtime :Crank the handle for 1-2 minutes, LED lights function for over 15-20 minutes
6. No need to replace batteries
7. Mobile phone charger for NOKIA, SUMSANG, SONY, etc, can be customized
