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Tignapoo 300W Car Power Inverter with 4 USB Ports & 2 AC Outlets, DC 12V to AC 220V Converter, Smart LCD Display, White ABS Material, 8 Safety Protections, Compact Design for Multiple Devices

<ul><li>[Car Power Inverter] Car power inverter with 4 USB ports and 2 AC outlets. 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).</li><li>[Intelligent LCD Voltage Screen Display] Smart LCD Display shows the battery Input battery voltage and output voltage in real-time, when the battery voltage is lower than 10.5V, the inverter is low voltage protection, please try to charge your battery full power then try again. (When the battery voltage is higher than 15V, the inverter high voltage protection)</li><li>[Mobile Phone Holder] Power inverter with mobile phone holder functions, which is convenient for you to use it when charge your phone and watch vedio.</li><li>[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.</li><li>[Fast Charging Four USB Ports ] Two internation universal AC outlets and support four USB charger ports 3.6A to work at same time and it can offer 100% 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.</li></ul>

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Calculation: (1)The working time of inverter, it is depend on the battery power and load power. (2)Formula: Working time (hours)&#61; Battery Capacity X Battery Voltage X 0.8X0.9/Load Power. (3) For example, the battery of 12V 60A is supplied to a 220V 100W bulb. The working time is &#61; 12(V) X 60(AH) X 0.8 X 0.9 / 100(W)&#61;5.18(hours) Specifications: Output Voltage: AC 110V / 220V (Optional) Model: ZX-4000 Color: White Name: Car power inverter Material: ABS Input 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 Frequency: 220V, 50Hz / 110V 60Hz Peak Power: 4000W Rated Power: 300W Output Waveform: Modified sine wave 8 Safety Protection Function: ①Reverse polarity protection ②Low input voltage protection ③High input voltage protection ④Over-current protection ⑤Short circuit protection ⑥Over temperature protection ⑦Overload protection ⑧Internal fuses Application: Applicable Loads for Rated Power under 300W: 5W-Cell phone 5W-Breast pump 10W-Digital Electronics(Ipad/Car navigation/Digital camera) 10W-Game console 5W-10W Electric shaver 20W-LED Lamp 25W-Walkie talkie 50-100W Laptop 60W-Compact Fluorescent Lamp 60W-Incandescent lamp 60W-Mechanical Electric9 Fan 60W-150W TV  80W-VCR 180W-Desktop Computer Item Size: 174 * 140 * 60mm / 6.85 * 5.51 * 2.36in Item Weight: 500g / 1.10lb Package Weight: 550g / 1.21lb Package Size: 20.5 * 10.5 * 17.5cm / 8.07 * 4.13 * 6.88in Package List: 1 * Car Power Inverter 1 * Cigarette Lighter Plug 2 * Battery Clip 1 * Package Box 1 * User Manual (English)