The LIFE-LIKE Hobby Transformer 390J is a powerful 18V AC to 16V DC transformer designed for model railroads. This blue transformer is suitable for hobbyists aged 17 years and up, providing reliable power supply for trains and railroads. With a 1:20 scale and made of plastic, this analog-controlled transformer by Life-Like is a must-have for model railroad enthusiasts looking for a high-quality power source. Ideal for HO/N gauge model railroads, this transformer offers a seamless conversion from AC to DC for a smooth and efficient operation of your model railroad system.