3000W DC 12V to AC 220V UPS Modified Sine Wave Power Inverter Widely used for all kinds of electric equipments which power consumption are less than 3000W with 20A Charge and which voltage are equal to AC 220V, such as cell-phone, portable computer, printer, electric light, digital camera, vidicon, TV, CD player, DVD etc. This is NOT a pure sine wave inverter, it cann't be used for pure sine wave appliance, such as electric tools, drill, etc.