... AC100V/110V/220V/230V/240V ...> of a conversion device. AC can use the product in the power range of appliances ... system. The other feature of the product is the use of high-frequency conversion technology, high efficiency, low noise ... saws, drills, grinders, sand blasters, punching machine, a lawn mower, Volume saws, grinders, welding torch, circular saw, vacuum cleaners, electric irons, air ...