Specifications - Output Waveform : Pure Sine Wave- Continuous Power: 3500W- Peak Output Power : 7000W- Frequency : 50Hz/60Hz- No load current draw : 90%- Input DC Voltage : 12V/24V- USB Output : Yes- DC Voltage Range : 10.5V-15.5V/21V-27V- Output AC Voltage : 220V - AC Voltage Range : 220V-240V- Low Voltage Alarm : 10DC0.5V/21DC0.5V- Low Voltage Shut Down9.5DC0.5V/21DC0.5V- Over Load : Shut Off Output- Over Voltage Shut Down : 15.5V/27V- Over Thermal : Shut Off Output Automatically- Fuses : Short Circuit- Start : Soft Start- Protection : Overload, Short Circuit, Overtemp, Reverse Polarity, Under/Over Voltage, Cooling Fans- Warranty : 1 Year - Size : 390MM * 180MM * 140MM- Weight: 5.5KG Please NOTE: 1. Please use the standard battery cables we sent, or a full power output may not be guaranteed. And the spare fuses in the package are just used when the original ones are burned by accident.2. A reverse connection of positive and negative is forbidden.3. Please do not overload. 7000W is only peak power(<10ms). If your applications are inductive loads, please choose the inverters whose continuous power is 3-7 times higher than the watts of your appliances. such as fridge, icebox, drill, washing machine, water pump, microwave oven, oven, vacuum cleaner, hair dryer, etc. with motor inside. Please make sure the constant power of our inverter meets your need before order, or consult us for more details. 4.Please do not leave the power inverter in the ON position while your car is off. Package Included 1 x Inverter2 x Battery Clip Cable 6 x FusesUser Manual