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I think 420 nm is the true actinic, which gives off a purple color. The 460 nm bulbs give off a bluer color and pop the blue and red color a bit better in my opinion.
I ran 250w DE Ushio 10k and AB 10k before. They were too yellow for my taste. I switched to Phoenix a few years ago and never look back. To me it gives a perfect light, which is a crisp white with just a hint of blue to highlight the acros. Of course, this is all personal taste.
However, I read this entire thread and thought to myself: G-man sounds really good, I really should look into this. A quick plug into Sanjay's website show:
Bulbs w/Icecap ballast PPFD shielded Not shielded
G-man megachrome 13k 63 79
G-man coral 13k 71 88
Phoenix 73 90
Did I miss something about the monster output of the G-man? or Did Sanjay not test the G-man bulbs that you guys are talking about?
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The trout, the whole trout, and nothing but the trout! So help me Cod!
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