They are controlled by DMX controller and there are 30 programs in the controller. The DMX controller just like a controller for the Led light, it can control the Led light turn on or off, control the speech of the color changed and control the brightness of the Led light.. You can adjust the controller to the effect what you want.

Voltages	90 to 260V AC/50Hz
Fuse	3A (power supply), 10A (control PCB)
Control system	All on/DMX control/sound active/Automatic
Color	Red, Yellow, Blue, Green, RGBY, RGBW, BW and UV
Lamp	φ5,
Channels	7
Size	4 x 6m
Packing size	65/35/22cm
Weight	44kg
LED space	20cm with a multifunction controller LCD display, switching power supply, SD card inside