Input Voltage: 12~24VSocket Output Voltage: 5VSocket Output Current: 2.1AUSB Output Voltage: 5VUSB Output Current: 2.1AContinuous Output Power: 10.5WPeak Output Power: 21WWaveform Type: OthersUSB: USB 2.0Output Socket: USB 2.0Conversion Efficiency: =85%Output Frequency: NoOver Voltage Protection:YesLow-voltage Protection:YesOvertemperature Protection:YesIndicator Light: NoPower Cable: 48cmApplication: For PDA ， MP3， MP4 ， Cellphone ， Notebook ， Digital Camera etcPackage Content:1 x Car ChargerNote:This item come without retail box，but we will pack well before shipping!