The coral vue is electronic, so whatever taht means. I cant remeber if that drives them more blue or white.
Steve, I have the reeflux 20Ks (not sure if tehy are avail in 250W) and honestly I was disappointed. Not as crisp as the 12k, but certainly not a nice bue either. I was running 400W coralvue dimmables. Now if I dimmed them down a bit, they were very nice color, but only running approx 300W