CAUTION:1.This is a modified sine wave inverter,NOT applicable for devices which work by built-in motor, hair dryers,air conditioners, coffee machine,water pump, induction cooker,refrigerators and microwave ovens etc.Make sure that the total rated power of the connected devices is 400W2.Tighten the Positive (+) and Negative (-) terminals when the car converter is in use3.If the converter is directly connected with the cigarette lighter. The highest out put power must be under 150W. If higher than 150W,we strongly recommend you using the Crocodile Clips to a battery ,because car cigarette lighter might not afford power over 150W.4.The car converter suitable for DC12V and Car ONLY, not applied for DC 24V and airplane5.Please do not leave the inverter in the ON position before car start.It's easy to damage the inverter before connected to the battery.The correct operation is connect to the battery first and then turn on the inverter switch6.It's normal for the inverter to become warm while you are using it.In order to get the best using results, please put the inverter on the flat surface.[Car Power inverter] Car power inverter with 2 USB ports and one AC outlet. The power inverter comes with free cigarette lighter and 2pcs battery clips, providing 300Watt continuous power, 4000watt peak power (Please make sure that the total rated power of the connected devices is 300W). Cigarette lighter cable can supply power for device easily. If the out put power is higher than 150W, please using the Crocodile Clips to a battery.[LED Green&Red Work Lights] When inverter work normal, the green LED Lights work and tell you it is working well, but when it is on protection status, such as low voltage, high voltage, over temperature, or over load, the Red Led Lights will light up and you need to turn off the inverter, and check which protection function is work, and try to solve it then the inverter can work again.[Intelligent LCD Voltage Screen display] Colorful smart LCD Display shows the battery Input battery voltage, output voltage, Battery capacity, frequency 50Hz or 60Hz, load capacity in real-time, which can help you to know the state of inverter conveniently.[Fast Charging Dual USB ports ] One AC Outlets and support two usb charger ports(Max 4.2A) to work at same time and it can offer fast charging for Mobile phones, computers, laptop,breast pump, Nebulizer, Razors, medical rescue device, emergency equipment etc. Easily meet the power supply needs of the diverse vehicle electrical appliance and it can be as a Emergency Power Supply.[Multi Protection] Built-in fuses, safe charging 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 protection.[Lightweight design &Top Quality] Lightweight and compact, ideal for vacations, camping and work trips. It can be plugged into almost any 12V power output vehicle, providing charging opportunities anywhere.Color: Black/RedName: Car power inverterInput voltage: DC 10.5V~15V,(When the battery voltage is lower than 10.5V, the inverter is low voltage protection, when the battery voltage is higher than 15V, the inverter high voltage protection)Output voltage : AC 110V /220V for your choiceOutput frequency is: 50Hz for 220V model /60Hz for 110V model.Peaks Power : 4000WRated power: 300WOutput waveform: Modified sine waveProduct Size: 20X11.2X5.6cmApplicable Loads for Rated Power under 300W:5W-Cell phone5W-Breast pump10W-Digital Electronics(Ipad/Car navigation/Digital camera)10W-Game console5W-10W Electric shaver20W-LED Lamp25W-Walkie talkie50-100W Laptop60W-Compact Fluorescent Lamp60W-Incandescent lamp60W-Mechanical Electric9 Fan60W-150W TV80W-VCR180W-Desktop ComputerPackage Included:1 x Power Inverter2 x Battery Clip1 x Cigarette Lighter Plug1 x English Manual