Modified sine wave inverter 4000W for vehicles1、Wide applicability. Be applicable for 12V DC, suitable for cars, motorcycles, ships, emergency work, outdoor work, home emergency,etc. 2、You can use it whether you are going out for a picnic or working indoors to facilitate your daily work and life, and make your life more perfect. 3、Dual universal plug with high temperature protection, low pressure protection, over voltage protection, over current protection and short circuit protection. 4、Dual fan cooling. Aluminium alloy outer shell. With LCD display. Display content: battery power, input voltage, HZ, output voltage, waveform. 5、Widely used in home theaters, electric grinding wheels, electric tools, sewing machines, DVDs, VCDs, computers, TVs, washing machines, range hoods, video recorders, massagers, fans, lighting, etc. and other household appliances.