250watt MH-Which bulb?

B

bigloggerhead

New member
I'm wanting to replace my metal halide bulb. I have a 250 watt DE retro system with 4-39 watt T5 HO's for actinic supplementation. I want a bulb with a crisp white light. The bulb I have right now seems a bit on the yellow side. I was once recommended to use a Ushio 14K bulb. It will be on an electronic ballast. I'm keeping SPS and a few softies but mostly SPS. Any advice?
 
I don't think a 20K is necessary. I have 4 T5's for actinics. I really want a crisp white light. Is the XM 10K with the T5's going to be enough blue to keep those pretty SPS's holding their colors?
 
I have the XM 10 k they are crisp white and no yellow at all and I don't have any actinics just yet.
 
Stay away from Phoenix, ugly blue. Go for max PAR like ESV 10K or the Giesemann Coral. The AB 10K has a great track record as well, one of my favorites.
 
<a href=showthread.php?s=&postid=8858533#post8858533 target=_blank>Originally posted</a> by bigloggerhead
Ti, do you think the 4 T5's I have will be sufficient for actinics?
Click to expand...
Definately.
I run a hamilton 14K with 2 t5 actinics and for me it's blue enough.
Alone the hamilton is a very CRISP white.
I use it on E ballast and it's DE.
 
<a href=showthread.php?s=&postid=8858782#post8858782 target=_blank>Originally posted</a> by bigloggerhead
Marko which Giesemann do you use?
Click to expand...

I have the 12.5k. They are really crisp and white. Not too much yellow.
 
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