Professional optical system dustproof technique, so need not periodic clean even if long time usage. Adopts the latest laser lamp of DPSS. Uses international std DMX 512 protocol. Laser pictures, picture changing method and picture movement speed can be controlled via DMX 512 controller. Adopts large memory capacity can up to 8Mbit. There are 256 built-in basic pictures and characters, 256 pre-programmed "combination picture effect", up to 300,000 kinds of actual light beam effects, 10 set of beautiful animation and 32 user refreschable graphics. Users can convert the standard ILDA format into the laser pictures, compile program and refresh the 32 user refreshable graphics inside the unit. The 12-bit resolution Beam length: 532 mm, Green, Interface: Control: DMX512, Refresh data: RS-232 Channels: 16 Dimensions (LxWxH): 411x261x150mm