... power off situation.Power inverter can be used in many occasion, such as in cars,in trucks,at boat,with solar system,and ... .150W:laptop, PDAS , 8" TV, Halogen light buld, CD , Mini stereo ,etc.300W: 20TV ,VCR Combo ,computer ,printer ,Fax ,etc.500W ... : Home stereo ,Blender ,Fan ,etc.1000W: Coffee maker, portable vacuum ,etc.2000W ...