My coralvue 10k bulbs are diff. colors!

[chunkysoup]

So I got 2 retro kits for a canopy that I'm making off of that auction site. Both kits are include 250 watt coralvue 10k bulbs. When I finally got my canopy finished, I hooked up the MH lamps and one bulb is a pure white like i expected. The other is a very blue light. I double checked the bulbs to make sure they were the same, and they are. Both say "CV 250 10k" on them. I ran them off each ballastand still got the same thing. I was just kind of upset when I hooked everything up and one end of my tank is blue and the other white. Any suggestions? I don't see how the bulb would have to burn in? They are the same brand so why wouldn't the other one have too?
Thanks in advance

 

[robchuck]

I run Coralvue 10,000K bulbs on my tank and noticed slightly different shades of white and blue between the bulbs when I first set them up. After about 10 days, they all burned in to the same whitish/blue color.
CV 10K bulbs are a bit bluer than other 10K bulbs, so I would wait it out for a few weeks to see what happens. Or one of the bulbs may just not be positioned properly. Make sure that both bulbs have the

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somewhere between 9 and 3.
If there's still a difference then, go ahead and contact the seller to see if they'll help you. Otherwise, the manufacturer has been a great help to me in the past when I had issues with a 15,000K bulb.