This is an Active L Splitter. The Simu Spots draw power from the L Ports on the profilux, as such you can only run a single Simu per jack on the Profilux (each simu uses 2 L Ports, each Jack contains 2 L ports). The other thing to consider is that only Ports L1L2 and L3L4 will send the signal for a lightning flash.
I want to run 4 Simu spots, so thats where this thing comes in handy. You plug this in to a single L Jack (L1L2 in this case) and it will power up to 4 Simu's through this splitter. The dimming curve will be the same for all 4 Simu's, but I can program each simu to react to Lightning independently.
This is an EVG Control board. This is an interface that allows you to connect 0-10V dimmable Ballasts or LED drivers to the L Ports on your Profilux. You supply 110V power to the terminals on the right side, then connect the power leads to your drivers. This device will turn off power to the drivers on a 0V signal via the relays on the board. The dimming signal leads are connected to teh termal block on the lower left. There are two channels. The smaller terminal block in the upper left is for the interface cable that connects to an L Jack on a Profilux or Expansion Box.
These little boxes are the Fan speed controllers. Like the previous devices pictured above, you connect these to the L ports on a Profilux. As the profilux sends a 0-10V signal, these will vary the voltage from 0-12V to the fans. You must supply the 12V via an external power supply (not shown here).
I have a few of these, and will be making use of two. These are the fan headers that will allow me to connect my LED cooling fans to the Propellor Control modules pictured above. The net result of these will be the Profilux controlling the speed of the fans based on LED intensity. This way the fans will not be very loud unless the LED's are really cranked up pretty high.