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FAQs about Fluorescent Light and Lighting for Marine Systems,
Compact Fluorescent/Power Compact Lamp Selection
Related FAQs:
Fluorescent Light 1, Fluorescent Light
2, Fluorescent Light 3,
Normal Output (NO), High Output (HO),
Very High Output (VHO),
Compact Fluorescents (CFs, PCs), Compact
Fluorescents 2, T5, TN Fluorescent
Lighting, & FAQs on Fluorescent:
Fixture Selection, End Caps,
Ballasts, Regular and High-Output Lamp
Selection, T-5 Lamp Selection,
Lamp Life-Span Issues, Power
Consumption Issues, Installation-Wiring,
Troubleshooting/Repairing,
By Make/Model/Manufacturer: &
Metal Halide Lighting, Lighting
Marine Invertebrates, LR
Lighting, Tridacnid
Lighting, Small
System Lighting, Related
Articles:
Fluorescent Light &
Lighting, Spectral
Quality of Various Fluorescent Lamps by Dana Riddle,
T5 Fluorescent Lighting, Coral System
Lighting, | 
Coralline algae need light too...
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Specifications on Power Compact Lamps
Power Compact Lighting Questions/Reef Lighting 1/12/09 Good
morning! <Hello Jim> I'm trying to understand the long term
lighting needs for my 2 year old, 90 gallon reek tank. I've searched
this site and others. I've recently re-read Mr. Fenner's article
entitled "Marine Lighting: Quality, Quantity & Duration." I believe I
now understand the methodology required to figure out what I want for my
system. I'm having a hard time finding complete information on
individual Power Compact lamp bulbs however. Most list degrees Kelvin,
and wattage (which I assume to be power consumption, not output.) I'd
like to compare CRI <Note that the CRI by itself does not indicate
what the color temperature of the reference light source is. CRI is the
ability of the lamp to display accurate colors.> and Lumens as well,
but haven't found this information on most manufacture's sites. I
currently have 4x65w, 21" "50/50" Coralife lamps. I haven't been
able to figure out what I really have now. <What you have now are
lamps with a mix of 6500K and actinic blue which is generally 460nm.>
Are you aware of a resource that has made a comparison of various brands
of these lamps? I'd sure appreciate a referral. <Am not, but you
should be able to get this info by emailing the company directly.
Reading here may help you better understand your reef lighting
needs. http://www.wetwebmedia.com/marlgtganthony.htm James (Salty
Dog)> Regards, Jim Lambeth Seattle
Changing PC bulbs 8/27/08 Dear crew -- <Hello> We have
a 55-gal FWLR salt-water tank. We do have a couple of corals that came
with our live rock (the SPS seems to have survived, mostly). <Great!>
We have 2x 65W Actinic + 2x 65W 10000k Daylight fluorescent lights on
the tank. It's been six months since the last light change, so we are
swapping lights. We realized that it would be better to swap two
every three months instead of all four every six. <Six months is more
than fine, still very conservative.> So we're swapping one actinic
and one daylight today. Ok, all of that was to ask this simple
question. Which is more important to an SPS coral, the actinic or the
daylight? <The daylight, actinic is aesthetic, the daylight actually
provides all the blue the corals actually need.> Since we're only
going to be replacing one of them above the SPS, which one should we
replace above the SPS, and which one should we replace on the other
side? <Either or, you are still well within the need to change these
bulbs; mine are done every ten months or so (still conservative in my
estimation).> Thanks Dave and Laura <Welcome, Scott V.>
Odyssea Lights 7/3/08 Hello! <Whit> I was wondering if
Odyssea power compact bulbs are any good. <Sure, they are fine.>
I know in the past they have been less than reputable, but am wondering
if that had changed. <I still read things about the fixtures, but
never the bulbs. I have never seen the firsthand failure of either from
this company.> Also, in a 46 bow with Frogspawn, Zoos, Kenya Trees,
Mushrooms, and Button Polyps, what combination of lights would you
recommend? I can fit three bulbs, any thoughts (how many 50/50's, etc).
<Perhaps one 50/50 up to one full actinic with the balance daylight.
This is covered to death on WWM, eighteen pages re marine lighting to
date, start here:
http://www.wetwebmedia.com/marine/setup/lighting/faqs1.htm > Thanks
again for your time! Whit <Welcome, have fun, Scott V.>
Too Blue? Hey guys, <Scott F. your guy today!> Got a
lighting question. I have a 65 gallon tank with LPS and soft corals. I
have 3 96 watt pc's, 1-actinic, 1-10000k, and I was wondering what the
third should be... 6700k? 7100k?20000k? Thanks, Justin Barstows
<Well, Justin...it all depends on the specific species you intend to
keep, as well as your aesthetic preferences! Even amongst the various
LPS and soft corals we keep, light requirements (both spectrum and
intensity) are highly variable. I, personally favor another actinic-but
a lot of people find that "too blue", regardless of what the corals
like! If that's your feeling, too, then I'd go with another
10,000K...Either should work fine. Your call here! Good luck! Regards,
Scott F.>
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