1. Capability of the built-in Li-battery: 500mAh.
2. Charge mode: A. Solar panel. B. DC from your car. C. AC directly.
3. Charge time with solar panel: 3 hours under strong sunlight, more time will be involved in inferior weather,
4. Operating range of temperature: 5-35 Celsius degree,
5. Operating voltage: 4.6-5.5 volt.
6. Able to charge other set such as MP3, PDA, Digital Camera and etc with a certain adaptor.
7. Size: 60x70m
8. Small, light, easy portable;
9. With a LED flashlight.