The LE is a DMX device and does work directly on E1.31 or USB. As far as Xlights is concerned, it is just a 16 channel controller. What you would need is a DMX dongle or any device capable of generating DMX output. The F16v2 is a E1.31 device and is also capable of creating the DMX output your LE's will need so I would look into getting one of those sooner rather than later. I would also look into getting a Raspberry PI to run your show. It makes fife so much easier to free up your PC for other things such as further sequencing even while the show is running.