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Old 12-26-2003, 06:44 PM   #1
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lighting canopy diagram

Here's some rough draft canopy diagrams on how I plan to do my lighting.

any thoughts?
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Old 12-27-2003, 09:39 PM   #2
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I like the slits on the top to allow for heat dissipation and evaporation. The power connector idea is a cool one too. Do you like the T5 bulbs?
I'm now buying a full hood instead of a retrofit, so I'm not sure how to do my canopy now. Should I just make a box, with front hinges, and leave the top off and simply set the hood on the top...or should I just set it on stands? There will be eggcrate on the tank and a glass or acrylic sheet in between the lights and the water surface.
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Old 12-27-2003, 09:50 PM   #3
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justDIY I like the set up, see no probs with it from my eye. What fans are you going to use and at what CPM are you going to run them at?
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Old 12-28-2003, 04:01 PM   #4
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Quote:
Originally Posted by dansemacabre
Do you like the T5 bulbs?
I like the T5's very much ... see my recent post about them in the diy forum - I was somewhat skeptical at first but now I have no doubts.


Quote:
Originally Posted by dansemacabre
I'm now buying a full hood instead of a retrofit, so I'm not sure how to do my canopy now. Should I just make a box, with front hinges, and leave the top off
yea, that is a good idea - they call those wrap-arrounds or surrounds, basicly just a band that sits around the top of your tank, with braces inside to sit lights on

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Originally Posted by dansemacabre
There will be eggcrate on the tank and a glass or acrylic sheet in between the lights and the water surface.
eggcrate is OK, glass or acrylic is unnessecary and will reduce your light output. when the glass is new, its fine, but after a few months calcium will build up on the glass and make it cloudy. acrylic will turn yellow after extended exposure to the radiation and heat from the lights.
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Old 12-28-2003, 04:04 PM   #5
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What fans are you going to use and at what CPM are you going to run them at?
i'm going with 4 5/8th inch 12 volt DC fans and will probably run them at 8 or 9 volts to reduce their noise.

since the fans will eventually get killed by salt water air, cheap dc fans are favored over more expesnive quiet ones.

also, ac fans sound kind of dangerous - having salt get inside there and cause a short circuit just doesn't appeal to me
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Old 12-28-2003, 05:06 PM   #6
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what have you come up with so far for keying your power coupling? You might wanna see if you can dig up some coupling from stage lighting equipment. They'll have a half dozen or so connectors and be able to handle the draw you'll need.

can't think of an easy place to get one, but I think that's what you wanna look for.
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Old 12-28-2003, 06:07 PM   #7
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Hey G, How and where are you ballasts going to be kept? Just curious for ideas myself. Thanks
R-
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Old 12-28-2003, 07:14 PM   #8
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what have you come up with so far for keying your power coupling?
well, I'm going to use the standard 3 prong IEC style connector found on most anything electronic. it has 3 conductors, all individually insulated.

I plan on using 2 of the 3 contacts on each connector - the unused contact / prong will be clipped out, and the corresponding hole on the female side of the connector will be filled with epoxy

see attached diagram
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Old 12-28-2003, 07:22 PM   #9
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Hey G, How and where are you ballasts going to be kept?
the electronic ballasts for the fluorescents will be mounted up high under the stand, just screwed into the wood.

the magnetic ballasts for the halides will be installed in a steel toolbox or similar steel enclosure and sat behind the stand or next to it (ive got about 18" dead space on either side of my stand)

so, all the ballasts will be remote mounted, and wired to the canopy with those power connectors.

I have a source for 15 ft IEC power cables, so I'll be using them for everything - should have a nice finished look.
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Old 12-28-2003, 08:37 PM   #10
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The eggcrate is to allow gas exchange while keeping my to-be gobies in the tank. I need something to protect the MH from splash, do I not? I was told in the Getting Started forum that while they are not required, they come highly recommended.
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