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11-06-2006, 03:17 PM
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OB Admin
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Join Date: Jun 2005
Zone: 3a
Location: Edmonton, Alberta. Canada
Age: 47
Posts: 1,726
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Quote:
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Originally Posted by ospylac
Well, they vary depending on the plants light needs from 14" to 2 feet away. I had to use some shade cloth to provide for some species. Using both a red and a blue bulbs 50:50 does really well at getting plants to flower, much better than my cloudy windowsills.
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Shade cloth for plants under flourescent bulbs.....that blows my mind! Are T5's also the regular 4' long tubes?
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Dave W
"It is easy to grow orchids - you just have to think like one!" - Unknown
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11-06-2006, 03:19 PM
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Roots are good
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Join Date: Sep 2006
Zone: 5a
Location: Cadillac, Michigan, USA
Posts: 8,320
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They come in both 24" and 48" versions as well as warm and cool (daylight) versions.
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Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)
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11-06-2006, 10:42 PM
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Senior Member
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Join Date: Sep 2006
Zone: 5a
Location: Fredericton, N.B. Canada
Posts: 354
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Another advantage of T5 lighting is the light output is relatively constant over the life of the bulb (typically 20,000 hrs)
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11-07-2006, 09:13 AM
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Roots are good
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Join Date: Sep 2006
Zone: 5a
Location: Cadillac, Michigan, USA
Posts: 8,320
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Quote:
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Originally Posted by Ironwood
Another advantage of T5 lighting is the light output is relatively constant over the life of the bulb (typically 20,000 hrs)
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I saw that, but why are lumens listed as "initial lumens"?
__________________
Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)
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11-07-2006, 11:51 AM
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Member
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Join Date: Aug 2005
Zone: 6b
Location: Langley BC, Canada
Posts: 92
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Because the light level changes over time, T5 are the more stable out of all of the fluorescents I believe. But still what I like about them is their energy produced (to feed the plants) Vrs energy consumed (what you get charged for), as they are rather energy efficient.
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11-07-2006, 03:31 PM
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Roots are good
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Join Date: Sep 2006
Zone: 5a
Location: Cadillac, Michigan, USA
Posts: 8,320
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Good explanation! I will still probably go this way, but want to cover my bases. Right now I'm thinking 3 or 4 of the 48" bulbs with a mix of daylight and warm (if possible).
__________________
Ross
http://orchids-ross.blogspot.com/
I don't do most Dendros or large, "floofy orchids". For me it's minis (like Angraecoides), Masdies, Paphs, and others that crept in somewhere along the line. See my orchid list for complete collection (usually not current.)
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