This RGBW Controller is divided into RGB and W two parts, it can be Turn on/OFF RGB Part and W part independently, and can controlled their brightness and their color independently. such as,when turn on RGB part, it can change RGB part's color and brightness;and can turn on W parts at the same time ,and can turn on/OFF W part or adjust its brightness .when at 3/7 color Fade model,can adjust their changing speed;when at 3/7 Color Jump mode,can adjust their brightness and adjust changing speed.