Overview:1. Imported monocrystalline silicon or polysilicon of high conversion efficiency has been adopted, the solar energy conversion rate is up to more than 16%.2. Specifications for solar panels: 5.5V 150m A, power up to 0.8W.3. The built-in high-capacity rechargeable lithium battery (900m Ah or more, different models optional match the lithium batteries of different specifications).4. Output voltage: 3.7V, 4.2V, 5.5V, & 9V, generally 5.5V, multipliccate output ports optional.5. Output current: 400-800 m A6. Charging time for mobile phone: about 60 minutes (Different brands & mosels of mobile phone is with different charging time).7. Charging time for built-in battery of solar charger is 10-15 hours (depends on light intensity & battery capacity).8. If computer USB (Universal Serial Bus) port or AC adapter recharge the built-in battery, charging time: about 3-5 hours. This product applies to the following product for charging: Mobile phone, Digital camera, PDA, PSP, MP3, MP4, GPS, DV, etc. Specification: Weight Approx:200g Size Approx:12.1 x 7.5 x 1.3