The most powerful ready-to-run train set transformer you can find, the Z-1000 boasts 100 watts of power, a U.L. approved design and separate 14v Accessory Ports. Its robust design will provide years of service and power enough to for any starter set to a moderate size layout. Available in many RailKing starter sets or separately, the Z-1000 is the perfect solution for a growing O Gauge layout.