A grating effect is an optical deflection grid, that multiplies the input rays. E.g. if you shoot a single laser beam to the grating, you get kind of a star effect (burst grating) or a "dotted line" (line grating) on the other side. Every color spectrum is deflected in a different way, so if you have a multi color input, you get the colors split up as well. That's why it is physically not... YES, the Laserworld GS-400RGB WHITE STAR is a white light star effect laser, and can even do more different color shades. For professional applications, the tarm DOT is the right choice for doing white light or multi color star effects projections without the use of scanning systems - and thus flicker-free. Many of our showlaser systems are equipped with quite versatile preset boards, that provide a basic functionality for operation in Music, Auto and DMX mode.To have the option of Master/Slave operation it is essential, that the units connected can act as transmitter and receiver of DMX512 control signals: The Master unit acts like a DMX controller and sends the control signal to the Slave... Unfortunately not: DMX and ILDA are very different types of transmission protocols. DMX is very limited in its capabilities, so it's not suitable for any complex signal transmissions.If you work in ILDA mode, you can only use the ILDA signal. DMX is deactivated at the laser devices as soon as an ILDA signal is available.