The vintage Lionel KW 2 Train Transformer is a black transformer with a wattage of 190, capable of providing power for model railroads in a 1:48 scale. This pre-built transformer features analog control, United States manufacture, and a voltage range of 6-20 volts. It includes direction control and a whistle function, making it a suitable power source for O gauge model trains. This Lionel transformer is a classic piece for model railroad enthusiasts aged 14 and above.