| Customer Reviews |
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4 Bright, but not that bright
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08/06/2008 - by Earl Kleckner from Danville, KY US
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This bulb has a nice blue/white color on a PFO HQI ballast, but isn't as bright as my singled ended XM 10k's which are overdriven on the PFO HQI ballast. Its a bit difficult going from such a bright bulb to a dimmer one. I haven't found a better color/growth combination than the XM10k's with VHO actinic supplementation.
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5 great bulb...
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04/22/2008 - by tom from southfield, MI US
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for a nice bright white color with enough blue that actinic supplemental lighting isnt needed. the colors "pop" under these lights and they still provide a high par value. using a tar ballast seems to push the bulbs to a brighter white over using an electronic ballast.
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5 Great Bulb, Coloration and Lifespan
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04/04/2008 - by anonymous from Union City, CA US
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I've been using these bulbs (no supplementation) for over 2 years and think I've found the perfect balance. I've used USHIO 10K (too yellow), Hamilton 14K (not enough growth although they have similiar coloration) and XM 20K (too unnatural/blue-purplish). I think I've found a perfect balance for growth, coloration and lifespan. I'm going on over a year on my bulbs (8 hour photoperiod) and think I may be good for another 3-4 months. My other bulbs usually shifted in color dramatically after 9 months and some (Hamiltons) started misfire/not start after 12 months. I know you should replace them every year but I like to squeeze out as much as I can before shelling out for 3 new bulbs at a time. My tank's still bright and growth on my SPS's has not been limited.
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4 Good HQI w/no actinic
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04/03/2008 - by Aaron Stowers from Indianapolis, IN US
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I purchase 2 of these for a clients' 110 gallon reef aquarium with ice cap pendant/ballast, via retro fit into a Perfecto Prestige 48x18 hood. The light is fantastic. Very bright, with a touch of blue. Barelly more than the 12k reeflux we were running before. Overall, I feel it was a good choice for a straigt HQI system w/no actinic help. The only thing missin is the flourecent "pop".
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5 Very nice and bright
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11/19/2006 - by scott from concord, NC US
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I have run these bulbs for 2 years now and I am very happy. Nice coloration white with a decent blue tint.
Good growth for a 14k.
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4 Amazing color but not much growth over time...
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06/12/2006 - by Chris Macaluso from River Ridge, LA US
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I ran this bulb without any actinic supplement and it was perfect in color. However, over time my corals became much less colorful. I am now running a 13000K megachrome which seems to not be nearly as colorful but my corals are coloring up.
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5 Nice way to go
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06/18/2005 - by Clint Warren from Dickinson, TX US
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Nice color with lots of output! I changed over from 10K Ushio and have been very happy.
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