Every Tornado built since the mid 50's, has featured a built-in voltage booster system. The #3005E also features a variable electronic heat control and a huge auto transformer. This really fast machine has a 7" diameter head and thus produces about 50% more floss than the 5". Four large brushes and two extra wide slip rings ensure long, dependable life. 1/2 horsepower, 3450 rpm motor with sealed ball bearings. 3216 Watts. Includes floss pan and whirlgrip net. This machine will not plug into a standard 115 outlet.