The Hornby Standard Train Controller (R8250) is a limited edition model designed for use with OO scale model railways. Made from pressed steel and plastic, this analogue control unit operates on DC power and offers a wattage output suitable for powering a collection of model trains. With a voltage range of 221 - 230 V, this speed controller by Hornby is compatible with their brand and gauge, providing a reliable and efficient way to control the speed and direction of your model trains in 2017 and onwards.