Not the brightest question about MH bulbs

[Son Of Skyline]

With PFO MH ballasts u can drive any 250w SE bulb. A couple bulbs I know of seem to look better with different ballasts. Those would be the 65k Iwasaki (H37 MV ballast) and Radium (HQI ballast).

I believe all the bulbs are pretty much good in terms of reliability. You'll probably just want to look into intensity and colour differences.

I just found this in a search...Good luck!

http://metricksystem.com/chris/250wcolour/