The Hornby R914 Power Control Unit is a ready-to-go analogue speed controller designed for OO gauge model train sets. With a wattage of 250W and a scale of 1:76, this plastic unit is compatible with DCC control systems and operates on DC power type. Made by the well-known brand Hornby in China, this control unit is the perfect choice for enthusiasts looking to power and control their model railway efficiently and effectively.