It is a strob driven by two channels, but what is more normal, I do not see a positive in itself.
The impossibility of using the strobe in standalone mode. Only a test button to test the strobe, but that will quickly put the nerves (AC Strobe speed tests each with different powers and all this loop ...)
If I had to buy a strobe, I think I would opt for a model that can be used indépendemmant of DMX.
However, for this price (111 euros Thomann), the 1500 Watts of strob make you forget (somewhat) DMX dependence of this unit.