Which 150w DE bulb is the blue-ist?

[jonbar1]

I'm currently running a 150w DE Phoenix 14k on a magnetic ballast and the time to replace the bulb is fast approaching. I'd prefer something a bit more blue since I'm not running actinics and wondered if anyone knew which bulb had the most blue to it.

 

[Russellaqua]

I personally run XM 20K bulbs. I've had great luck with them. Very reliable, relatively inexpensive, and nice and blue.