owning the patent of the technology of intelligent voltage adjusting, can output voltage and current on different levels. It can charge up most brands mobile phones or USB interface digital products under sunshine directly and also can charge up the devices mentioned above without sunshine through releasing electric energy stored in it. It is convenient for you to take with when you are out on business, on travel, on a long-distance bus or ship, in the fieldwork, etc. It is a portable, environmental-friendly, lightweight, flexible, durable and versatile charging product.
USB interface digital products refer to digital products that are equipped with built-in chargeable battery and can be charged via USB interface
Technical Parameters:
Peak power supplied by photocell: 1.54W
Operating voltage: 5.5V (max)
Charging current: 280mA (max)/3.8V
Battery capacity: 2500mAh
Output voltage: 4.5V-9V (adjustable)
Output current: 1A (max)
Charging time: 8-10 hours (illuminating scope: 100mW /Cm2)
2-3 hours (indoor power: 5V /800mA)
Dimensions: 137*79*24 mm
Weight: 240g
Specifications:
Input interface: DC interface
Output interface: USB interface
Material: Plastic (ABS)
Intelligent LED display: 3 colored indicators (red, orange, green) for status of remaining power while charging.
Flash light: LED light of high brightness
Control switch: ON/OFF/LED
Output voltage switch: 4.5V/5 V/6.3V/9V
Application Scope:
It is suitable for most brands cell phone and electronic digital mobile equipment whose charging voltage ranges from 4.5V to 9V.
For instance,
4.5V: most cell phones, and digital camera of 3~4.5V;
5V: PDA, palm game player, electronic dictionary, learning machine, MP3, MP4, MD, CD, Personal stereo, shaver, digital camera of 4.7~5.3V and etc.;
6.3V: digital camera;
9V: portable DVD, DV, digital camera of 7.5~9V and etc.

Note: The above voltage value is just for reference. As for the detailed voltage, it depends on charging voltage of each product. 5V is better for NOKIA cell phone.