... power inverter convert low voltage DC power to high voltage AC household power. It is widely used indoor and outdoor,can ... ,VCR Combo ,computer ,printer ,Fax ,etc.500W: Home stereo ,Blender ,Fan ,etc.1000W: Coffee maker, portable vacuum ,etc.2000W:Fridge ,Reversible ... machine ,etc.3000W: Water pump ,air conditioner ,etc. Features:1.cooling fan2.Overload protect ,over voltage protect ,low voltage cut-out ...