0-100% brightness can be adjustable, making the light soft, stable without flickering.When PWM digital is dimming, it can avoid rush current, protecting your led light being damaged.Constant voltage and constant current output can be connected with amplifiers to extend its load.Simple to use. With a knob controller, it's operated by manual. It also has an auto memory function, bring your much convenient to use in home.The product is really easy to instal