... solar Key Specifications:1. portable solar charger for all your multimedia & electronic equipment, such as Laptop, camcorder, MP3/MP4, PDA, cell ... housingsolar panel 18v/280mA,5.04Wconnectors a set for laptop, other connectors chose by customerapplication laptop, mobile phone, DC,PDA,MP3,MP4,PSP ... size 25*10*3cmcharging time AC/3-4hours, solar panel/13-18 hoursoutput current big USB(5.0V 500mA) small ...