MH Lights

[nodough]

I am running 3, 250w MH lights, all are XM-10,000K and are fairly new say 3 months old. 2 of them are crisp white one cast off a yellow tint, this was also the case before I changed the bulbs, could this be something going wrong with the ballast? Any ideas would help.

 

[tike]

Are all three on the same brand ballast?

 

[nodough]

Yes I have 2 on one ballast and the other on a ballast by it self. the bulb that is yellow is on the double ballast with another light.

 

[tike]

What type of ballast is it?

 

[sgwill122]

Why don't you just move the bulbs and see if the yellow bulb turns white on a different ballast?

 

[NaH2O]

I would try this, as well. I remember reading threads about 4 years ago that XM 10Ks had an issue with really yellow color, but it has been a long time since hearing of these problems.

Well, I lied, here is a newer thread on RC about it: XM 10K's are Yellow

You could also check the nipple orientation of the bulb. I know some folks say this makes a difference with bulbs (as pointed out in the linked thread), although, I never noticed a difference with the color of my bulbs vs. nipple orientation, but you might want to check it out, and see if that helps.

 

[nodough]

Thanks for the link

 

[NC2WA]

nodough,

i had the same issue with these bulbs. It was the bulb not the ballast. the new bulb is crisp white.