I emailed Illumitex about ordering the X5 spectrum NeoSols and they pointed me to hydrofarm. Hydrofarm didn't have any X5 info online so I emailed them. Waiting on a reply back.
So I asked growershouse.com about ordering an X5 spectrum NeoSol, they said they needed to ask Illumitex if they could get them. Growershouse got back to me and they said that they were told that after extensive testing, the red/blue F3 significantly outperformed the X5 so it is discontinued.
Interesting to say the least.