First confusion to get away is the difference between Engine Lightning by Soundswitch) in the Prime hardwares OS which offer a basic and a pro version, and Soundswitch Desktop itself (which basically is needed for the Engine Lightning Pro version).
The basic version in the hardware is enough to control Hue lights. You need:
Software
Engine DJ v2.0 or higher
Hardware
Engine DJ hardware running v2.0 or higher
Philips Hue Bridge
Philips Hue Light (Entertainment Area approved)
The Pro version is to have more advanced control AND to control DMX lights. You need:
Software
Engine DJ v2.0 or higher
SoundSwitch v2.4 or higher
Hardware
Engine DJ hardware running v2.0 or higher
SoundSwitch Micro or Box One DMX Interface
You need as shown above the Hue bridge (in the same network).
The Hue bridge is connected wireless. The USB to DMX dongle goes directly in the normal USB port of the unit. In case of Prime Go a USB hub works if needed.