10K Ushio Vs. 10K XM Vs. 10K CoralVue

[Nathan1]

My 400W 10K Ushios are starting to wear out after 3 years!

I absolutely adore the Ushio bulb, but I am considering some of the new bulbs such as the XM or CoralVue 10K variety. I have a 175W 20K XM bulb for supplementaion as well as some actinic, but my main bulbs are 10K 400W.

Does anyone have any comparison data or comparison photos of these bulbs?

Thank you.

 

[ChrisRD]

This comparison is of 250 watt SE lamps, not 400s, but it might give you some idea.

http://reefcentral.com/forums/showthread.php?s=&threadid=254667

HTH