Originally Posted by
SpiderWoman
http:///forum/post/2648801
If these are just halides, I'm willing to bet they are Radium 20k. Those are nice and blue.
lol, no.. Radium 20K bulbs are the furthest thing from "nice and blue", especially for a 20k bulb. I do not think they are a true 20k bulb, at least they don't look that way to the eye. They are a super bright, crisp white with a tint of blue in my experience. The bulb would obv look different on depending on what ballast you use, but for the most part radium 20ks are not very blue at all.