Giesemann Megachrome Crystal MH went Pink???

[dcmartinpc]

I have been running 2 x 400w Giesemann Megachrome Crystal metal halide bulbs driven by 400w PFO "HQI" ballasts (430w HPS Son Agro). They were great the first couple of months, but they have recently gotten VERY pink. Here is a side by side comparison to a Radium. Has anyone else experienced this?

 

[DSC reef]

I would contact geismann. It looks like a spectral change. A few bulbs did that when they went bad.

 

[dcmartinpc]

So here is an update. I had 2 new Megachrome Crystal bulbs I bought to have on hand. Swapped the new one in. Here is a side by side picture with the new Crystal and the old.

 

[cbutkos]

So its been about 6 ish months...has the new megachrome shifted to pink as well?