CCT controllers are a type of lighting control that allows you to change the color temperature of your lighting. This means that you can use them to create different lighting effects for different purposes. For example, you could use a CCT controller to make your kitchen lighting brighter for cooking, or to make your living room lighting softer for relaxing. CCT controllers are also a great way to save energy, as they allow you to adjust your lighting to suit your needs. So, if you're looking for a way to save energy and create different lighting effects, then a CCT controller is the perfect option for you.