High efficient transforming, The transfer ratio reaches up to 15% Solar panels: 5.5V/80mA Output voltage:4.9~5.1V PRODUCT: SOLAR CHARGERThe sun without AC power, solar energy can translate directly into DC. And can be charged anywhere for mobile phones, digital cameras, MP3-MP5, and other small electrical appliance. It is the essential partner for trips enthusiast , often travel, outdoor sporters ...