CSL Smartlite?

[Bob I]

Originally Posted by Coffeeman

One thing I have noticed about these lights is that the bulbs seem to lose intensity very fast.After a few weeks the 10k side appears yellow.

What you observed is certainly true. Although a few weeks is a bit of an overstatement. I have recently measured my 96W tube with my Luxmeter, and found that it had lost 50% of its intensity in about eight months. So unless you really overkill from the start, you probably will have to look at replacing bulbs every eight months.