Features: red, green and yellow three colors DMX512: 8 channles Safety Capacity: Sound active mode with the function of shut of laser if no music. Master/Slave and DMX 512 mode will shut off laser automatically without trigger signal, safer to human and environment. Power Supply: 220/110V, 50/60HZ, 30W Dimension (mm): 330*320*150 Weight: 4.2Kg Applicable for disco hall, clubs, KTV, family party etc.