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Old 11-18-2004, 05:41 PM   #1
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lighting comparison vho vs. power compact

I already have a 90 gallon tank with a canopy setup with a icecap 660 and 4 x 110 VHO. The icecap ballast is capable of running 4 x 96 watt Power Compact. Should I convert from 440 watts of VHO lighting to 384 watts of power compact lighting.

Thanks
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Old 11-18-2004, 05:46 PM   #2
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Supposedly the PC lights last longer (12 months) vs. VHO. Can't make a claim either way.

PC is great because its easier to fit more bulbs over the tank.
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Old 11-18-2004, 05:47 PM   #3
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I think it is up to you, but the PC lights are more expensive but last longer. I alos have heard that the VHO are more true to the deep actinic color and the PC tend to be a little more washed out. I do not have VHO so it is just what I have read and heard.
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Old 11-18-2004, 06:38 PM   #4
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Skennelly
I hope I think I understood you right...You can run PC lights off of a Icecap 660 ballast? I have the same setup and hate the VHO lights for one reason...they are big and take up all of the room I have. I would love to run PC lights as I have 2 icecap ballasts...I only have room for one set of 4 VHO bulbs....If this is the case then I can run 2 ballasts and have enough room for all of the lights!!
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Old 11-18-2004, 07:17 PM   #5
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My personal opinon is to stay with VHO. I have both VHO and PC. I first had PC and loved them and then got the VHO. Both used the same specitrum 2 X 10K and 2 X Actinic. I like the color apperance of the VHO better. I also replace my PC bulbs every 9 months. There is a noticable color shift after 9 months to where I feel my corals are at a disadvantage if I left the bulbs for another 3 months before I replaced them.

I am currently at 10 months with my VHO bulbs and I dont plan on swapping them out for another two months.
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Old 11-19-2004, 11:43 AM   #6
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I just wish I could do something with my second ballast that is just sitting waiting to be used. I am very limited on the room I have under my canopy and if I were to hook up the lights (even 2), I would not have anough room to even stick my hands down into the water. Literally the light are 2 inches off the water and the canopy is about 3 ft from front to back...arg!
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Old 11-19-2004, 01:53 PM   #7
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Fishman,
You understood me correctly. If you go to the Icecap homepage they have a diagram of how you can use the 660 ballast. It can handle up to 4 x 96 watt power compacts.

http://www.icecapinc.com/flapp.htm

It also shows you a wiring diagram here.

http://www.icecapinc.com/aq.htm
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Old 11-19-2004, 03:45 PM   #8
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I have used VHO in my config, viewable in my gallery. Can't mess with success.

GL
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Old 11-19-2004, 03:59 PM   #9
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I had the same question: VHO vs PC
I found this article:
http://www.championlighting.com/e/en...ucts/Lighting/vho.html?link=/Products/Lighting/aboutlight.html

You'll have to copy and paste link

It shed some light for me...

-Logan
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Old 11-19-2004, 04:26 PM   #10
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Thanks for the link....I'm starting to get happy about the VHO's I have.
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