Tech 4 220 Can easily run 5 average HO locomotives A superb unit that not only boasts excellent power and Accutec technology, but offers momentum, a much-wanted feature, is rarely found in this price range. Features Include: Accutec technology Momentum Proportional Tracking Control Directional control Power indicator light Futuristic, ergonomic design, rugged engineering resin housing Fixed AC terminals for accessories UL listed 5-year limited warranty