The standard in scrolling color changers for years. The Coloram II System consists of one or more Color Changers and a remote Power Supply. The DMX512 control signal from the lighting board is connected to the Power Supply and can continue on to more Coloram II Power Supplies or other DMX-controlled devices. The Power Supply sends both power and control signal on a single cable eliminating the need for a separate power cable for each Color Changer. The Coloram II System also allows you to control the Color Changer fan speed via an additional DMX channel on the lighting console.