... 10/12v 12v/7AH battery Mobile charge with USB S903 (10W) DC Solar Lighting Kit: 1. System Composition 1)Solar panel10W ... interface3(one for USB, two for DC)Charging battery time(10W/18V solar panel)10-12 hours if use float rate ... .01cbm 4. ApplyingDC lamp (12V), camera, mobile phone ,MP3,MP4,MP5,GPS,PDA,video and so on. 10w solar power system in solar ...