4.25 modes,including 7 static colors and 18 dynamic changes:static colors can be adjusted in brightness,and dynamic changes can be adjusted in speed. 3.It has a power-off memory storage function.Each time it is powered on,the change mode at the last power failure be retained. 1.This product is a constant voltage controller.The standard product power supply voltage is 12-24V,which is a wide voltage.The power supply in this range can be used universally. 2.The output is three-circuit,and the maximum current allowed for each circuit is 4A.It can carry 1230 lights/meter light strips for 20 meters,and 12V60 lights/meter light strips for 10 meters. 5.When adjusting the brightness and speed,you can directly hold down the button and adjust it quickly and continuously.