DC12V-AC110V/ AC220V Car Switching LED Display Dual USB Modified Sine WaveFeatures:-【LED BATTERY DISPLAY】Battery Level Bar for LED Display shows the battery Capacity, which can remind you that when your battery no power. When connect the battery with , this LED Screen work and show the real-time capacity of battery. It have five level (lattice) of the Battery Level Bar, and each lattice represents 20% of the battery power. When your battery is no power, the display will f to remind you that you need to charge your battery.-【Fast Charging Dual USB ports】One AC Outlets and two USB ports can offer fast charging for Mobile phones, computers, laptop, , , s, res device, equipment etc, can be as Power Supply.-【Multi Protection】Built-in , 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 plued into almost any 12V power output vehicle, providing charging opportunities anywhere.- 8 Safety Protection Function:①Re polarity protection②Low input voltage protection③High input voltage protection④Over-current protection⑤Short circuit protection⑥Over temperature protection⑦Overload protection⑧Internal Specification:Material: plastic shellColor: Yellow /BlueInput voltage: DC 12VOutput voltage: AC 220V,AC110VOutput frequency: 50HzPeaks Power: 4000W,6000WRated power :300W,500WOutput waveform: Modified sine waveSize: 20.5*11.7*5.8cm (8.1 x 4.6x 2.3 inch)Note:▲.This is a modified sine wave , NOT applicable for devices which work by built-in motor, hair dryers, air conditioners, coffee machine, water , induction cooker, refrigerators and microwave ovens etc. e sure that the total rated power of the connected devices is ≤ 400W▲.Tighten the Positive (+) and Negative (-) terminals when the car converter is in use▲.If the converter is directly connected with the arette . The highest output power must be under 150W. If higher than 150W, we strongly recommend you using the Crocodile Clips to a battery, because car arette might not afford power over 150W.▲.The car converter suitable for DC12V Car ONLY, not applied for DC 24V car and airplane▲.Please do not leave the in the ON position before car start. It's easy to damage the before connected to the battery. The correct operation is connect to the battery first and then turn on the switch▲.It's normal for the to become warm while you are using it. In order to get the best using results, please put the on the flat surface The working p should meet the following criteria:① Keep dry, should not let the contact the water or other liquids, keep the away from moisture or water.② Cool environment, keep the temperature between 0 Celsius degrees and 40 Celsius degrees. Do not put the next to heat vents or other devices. Try to keep the not be shined directly by the sunshine.▲.When the battery voltage is lower than 10.5V, the is low voltage protection, when the battery voltage is higher than 15V, the high voltage protectionWhat Size Power Do I Need?The size you choose depends on the watts (or amps) of what you want to run (find the power consumption by referring to the specification plate on the appliance or tool). We recommend you buy a larger model than you think you'll need (at least 10% to 20% more than your largest load).Packing included:1 x Power 2 x Battery Clip1 x arette Plug1 x English Manual