... performance and characteristics solar mobile charger: 1, Aluminum shell,2, Adapt MP3,MP4,PSP,NLSL,IPOD,cellphone,digital camera3, Multi silicon solar cell, light energy ... conversion rate of 17% .4, Solar Energy Battery:5.5v 30ma5,Built ... overshoot, over-discharge7,Output: 5.5v 500-800ma8,LED flashlight function