Model Number: CA55-#6253 Key Specifications/Special Features: Input: 12-24V DCOutput: 5V DC, 2.1ACompatible with most of mobile phones, music players, SAT NAV and GPS systemsCharge your USB device on the move, charge 2 USB powered devices simultaneouslyCompact design and light weight, simply plug into your car's cigarette lighter socket and chargeFully short-circuit protectionCE certified in the input plus fuse 2A/63V Input Voltage current 12V -24V DC Output Voltage & current 5.1V DC ± 5%, 1200mA Switching Frequency 100kHz Output ripple voltage <200mV output noise <200mV Over current protection TYP current limit 2.5A Output efficiency UP to 90% product certificate CE Dimensions 53.7mm*29.25mm weight 12g Customized color Black, white, red, rose, blue,yellow,green Smart IC customized USB pins Normal or customized Packaging Bulk or blister or color box Quantity Warranty 0.3% replacements or 1 year