I'm using a DE 150w 20k Radium in my Solana pendant over a custom shallow tank. The light is very bright and not at all blue especially compared to the Phoenix 14k. I'm happy with the overall appearance growth of my corals and I bought a few for backups.
What ballast you are using it with? The ballast that you use usually also affect the color of the bulb.
If you are looking for a whiter 14K the Ushio is my favorite and what I use exclusively also on IC ballasts. These lamps are true 14k's i.e. closer to 10k's than the others like the Phoenix ( not over-driven) which IMO are really 20K lamps.