20Key Infrared Music LED Controller IR Sound Remote Control with AUDIO DC 12-24V 18A 3CH for RGB LED strip lighting Input voltage: DC12-24V Output: 3 channels. Output current: &lt;6 A (each channel) Output power: &lt;216WTechnical Parameters 20Key infrared Music LED controller adopts the advanced micro control unit. It is used for controlling a variety of lamp whose source of light is LED. it has many advantages such as low price, easy connection and simple to use. Meanwhile you could adjust brightness, static colors and color changing effects through infrared remote control. When it is in sound-control mode, the colors will change with the rhythm of music.