The Lionel 680 Watt ZW Multi-Watt Transformer is a powerful black transformer designed for controlling four trains or accessories in a model railroad setup. With a scale of 1:48 and an analog control system, this transformer boasts a wattage of 680W and features a sound function for added realism. Measuring at 12 inches in length, 10 inches in height, and 8 inches in width, this transformer weighs 12 lbs and is suitable for model railroading enthusiasts aged 17 years and up. The inclusion of two 180 Watt transformers enhances its power capabilities, making it an ideal choice for managing multiple trains in an O gauge model railroad system. This transformer provides lots of power for four trains and accessories. It is in excellent condition. Please review pictures for your own evaluation. There are two available. One box is in very good condition; the other box has wear.