MH 250 DE bulbs comparison

[gvv]

Maybe I'm wrong, but I think there was some info on different bulbs here...
Just want to change my bulbs and need more info 

[yellowtang]

Iam in the same boat.......my 250w 15000k XM bulbs are due
for replacement next month......have been running them for 10h daily
for almost a year with ok results...Now I am thinking what bulbs to go for!!!

[FocusFin]

Here you go.

http://reefkeeping.com/issues/2007-04/jb/index.php

This one allows you to do a side by side comparison.

http://www.chrismorris.ca/250wcolour/