12v cigarette lighter power adapter; 1.small enough to carry around 2.100% full-load ... test 3.Safety & heat reduction Specification of 12v cigarette lighter power adapter :Input Voltage:12~24VOutput Voltage:3.3V~12VOutput Current: 0 ... : Ipod,Iphone,Zen,Zume,MP4 ,etcDetailed picture of 12v cigarette lighter power adapter : 12v cigarette lighter power adapter