Feature 1LED display shows the battery input voltage, output voltage. Car power cable can provides power for device easily. If the out put power is higher than 200W, please using the clips to a battery. 2Dual USB ports, quick recharging for mobilephones, computers, laptop, emergency equipment etc, can be as a emergency power. 3Built-in fuses, safer recharging design and cooling fan prevents the car power converter from over-heat, saving power and energy. Suitable for a variety of 12Volt battery and car plug and automotive equipment. Features: LED display shows the battery input voltage, output voltage. Car power cable can provides power for device easily. If the out put power is higher than 200W, please using the clips to a battery. Dual USB ports, quick recharging for mobilephones, computers, laptop, emergency equipment etc, can be as a emergency power. Built-in fuses, safer recharging design and cooling fan prevents the car power converter from over-heat, saving power and energy. Over voltage, overload, over-current, short circuiting, under-voltage, overheating, short circuit protections. Lightweight and compact, perfect for vacations, camping and work trips. It can be plugged into almost 12Volt power output vehicle, providing recharging opportunities anywhere. Specifications: Color: black, yellow (optional) Type: DC12Volt To AC110Volt, DC12Volt To AC220Volt (optional) Input voltage: DC10.5V~15V (When the battery voltage is lower than 10.5V, the inverter is low voltage protections, when the battery voltage is higher than 15V, the inverter high voltage protections) Output frequency: 50Hz/60Hz Peaks power: 4000W Rated power: 300W Output waveform: modified sinewave Car use cable length: 425mm / 16.7in Battery clip length: 468mm / 18.4in Item size: 163 * 100 * 77mm / 6.4 * 3.9 * 3.0in Item weight: 400g / 0.9lb Package size: 200 * 130 * 110mm / 7.9 * 5.1 * 4.3in Package weight: 500g / 1.1lb Packing List: 1 * Inverters 2 * Battery Clip 1 * Car-use Power Cable 1 * User Manual Package List 1 * Inverters 2 * Battery Clip 1 * Car-use Power Cable 1 * User Manual