1800W Modified Grid off Power Inverter: 1,1 year warranty 2,more than 95% efficiency Our Modified ( Square ) wave power inverter popular work forThe practical scope of office equipment laptop computers, mobile phones, printers, monitors[Appliances] TV, VCR, stereo, DVD, VCD and refrigerator[Outings] outdoor lighting, portable, etc.[Operating] outdoor power tools, vehicles for assistance, disaster ...