Product Name: IEEE1394 & USB Car Charger, Adapter. 1) Input voltage: DC12-24V, suitable for any car cigarette lighter. 2) Output parameter: USB DC5. 0V or 5. 5 V 300-1000mA. 3) LED display: A. 1 LED 1 color indicates power on. B. 1 LED dual color, red LED will light up to signal that charging is in processing, green LED will light up to signal that charging is completion. 4) Compliant with IEEE 1394 and USB 2. 0 standard 5) Limited charging current: 500mA-1000mA 6) Steady precision: 5%. 7) Loaded effect: 3%. 8) Efficiency: >=88%. 9) Dimensions: 88 x 34 x 31mm 10) Weight: 26g 11) Constant charging current and charging voltage, short-circuit protection, suitable for charging in car. 12) Operating temperature: -10deg -- +40deg; Relative humidity: <=85%; Atmosphere pressure: 86 -- 106Kpa 13 Storage and conveyance temperature: -40deg -- +60deg; Relative humidity: <=90