Gaugemaster Single Track Controller with Plug in Transformer Details: This uncomplicated controller comes complete with a separate dedicated transformer which plugs directly into the wall with a 1.8m lead to plug into the back of the controller. Made from high impact ABS, this entry level controller offers the same running characteristics as our traditional units. The best controller for starting your model railway or to control the lighting on your existing layout. H O Scale, N Gauge, OO Scale, OO9 Scale. Measurements LENGTH 90mm WIDTH 58mm HEIGHT 35mm CABLE LENGTH 1.8m Technical Details INPUT 230v Mains CONTROLLED OUTPUT 1 x 12v DC UNCONTROLLED OUTPUT 1 x 16v AC CURRENT RATING 1.1A