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. 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. 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. 5.When adjusting the brightness and speed,you can directly hold down the button and adjust it quickly and continuously. Product name:8-button dual-control button controller Connection method:common anode Working temperature:-20-60°C Static power consumption:{Less than}1W Output power:4A 5V: {Less than}60W,12V{Less than}144W.24V{Less than}288W Power supply voltage:DC12-24V Output current:30A wireless remote control distance:{Less than}50 meters Remote Control Battery:1x12V 23A Battery(Battery Included) Colour:Black Material:ABS Package Contents: 2 x Receiver 2 x Transmitter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.