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12-05-2008, 05:17 PM
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Jr. Member
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Join Date: Jan 2008
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Location: Central NY
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Reflections from an Amateur or
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12-05-2008, 06:46 PM
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Member
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Join Date: Oct 2008
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Location: Bakersfield, Califonia
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Excellent article
Thanks so much for this piece of advice. It is exactly the sort of information for which I have been searching. Now it is back to the books and orchid supply houses.
Depau 
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12-05-2008, 07:00 PM
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Roots are good
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Join Date: Sep 2006
Zone: 5a
Location: Cadillac, Michigan, USA
Posts: 9,219
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Use a good light meter
I have been preaching this for nearly a year: you get what you pay for. Good light meters (calibrateable) are the only ones worth spending money on. The only definitive way to describe how much light is being provided is to measure it. Glad you made that discovery and glad that discovery led to better success. Exactly as I would have predicted  I also trust you have found great success with t5 florescents. By the way, it is possible to "fry" your orchids under these lights if the foot-candles or lumens are not controlled - whoah! We're back to the light meter 
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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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12-05-2008, 10:37 PM
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Senior Member
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Join Date: Dec 2007
Zone: 5a
Location: Dover, New Hampshire, USA
Posts: 144
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Fry bacon, not orchids!
Quote:
Originally Posted by Ross
I have been preaching this for nearly a year: you get what you pay for. Good light meters (calibrateable) are the only ones worth spending money on. The only definitive way to describe how much light is being provided is to measure it. Glad you made that discovery and glad that discovery led to better success. Exactly as I would have predicted  I also trust you have found great success with t5 florescents. By the way, it is possible to "fry" your orchids under these lights if the foot-candles or lumens are not controlled - whoah! We're back to the light meter 
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Agree! It IS really easy to fry orchids under T5's. I will attest to that- along with a few of my sunburnt plants too. Even with using a light meter. I have found that even readings over 1500 footcandles may be too bright for a full day under the lights and have had good success in backing that down some. So I'd add that just because one has a good tool in a high quality light meter, doesn't mean one can't still screw up using it!  One can definitely produce alot of good light with T5's - using it without frying some of our poor trusting orchids takes observation, good tools and experience. 
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12-06-2008, 03:29 AM
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Jr. Member
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Join Date: Jan 2008
Zone: 5a
Location: Central NY
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I appreciate the comments
Thanks for the comments! I'm new at this forum business, this is my first article. I saw the contest and decided to share my thoughts. Regarding frying my orchids, that's why I set up 4 different light levels. My paphs are doing very well in the low section, a 50/50 mix of 3000K and 6400K bulbs, 800-900 ft-candles at the plants. On the high light end I've had to move some out that were getting sunburn, but on the other hand my brassavola and some of my Catts just drink it up and ask for more. I know I have not arrived yet, I have lots of experimenting to do, but after 6 years of very little success, to be where I'm at now is very gratifying. 
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12-08-2008, 12:13 PM
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Member
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Join Date: Oct 2008
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Location: Zimbali Coastal Resort just North of Durban on the East Coast of South Africa
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Thanks for the inspirational article
Where can I get a good light meter and what should I be looking for? I would need to buy on the internet, preferably considering my location.
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12-08-2008, 01:48 PM
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Jr. Member
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Join Date: Jan 2008
Zone: 5a
Location: Central NY
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Quote:
Originally Posted by Amanvari
Where can I get a good light meter and what should I be looking for? I would need to buy on the internet, preferably considering my location.
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eBay is where I got mine, I use one just like this one in this link.
Digital Light Meter 50,000 LUX LCD Photo New w/Battery - eBay (item 250338795989 end time Dec-09-08 18:04:21 PST)
It's not fancy, and it's not expensive, but it seems to work very well. It comes calibrated, the down side is you can't change the calibration yourself. It comes calibrated in the blooming spectrum (near 3000K), but it seems to read 6000K levels fairly accurately. I was a bit skeptical considering the low price, but I took it to two orchid greenhouses where they graciously let me test light levels in different parts of their greenhouses. The readings seemed reasonable and it has worked fine for me in setting up my lights. My orchids seem to agree, so if you have a limited budget I think it's a good choice. There are some good deals on eBay on more expensive meters if you keep your eyes open.
Last edited by JDwiggy; 12-08-2008 at 01:52 PM..
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12-16-2008, 02:51 AM
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Senior Member
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Join Date: Oct 2008
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Location: San Francisco, CA
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Thanks for the great info, especially about the importance of light. I've started supplementing with artificial light in the winter months for my reluctant bloomers, and it definitely helps with some.
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Marc
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12-22-2008, 11:49 PM
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Senior Member
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Join Date: Sep 2008
Posts: 381
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Hi James
What is the burgundy coloured orchid in your article? Is it a Phaius or Phaiocalanthe?
Brett
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01-07-2009, 01:40 PM
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Senior Member
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Join Date: Jan 2008
Zone: 7a
Location: Oregon
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Bloom on article
Is that a Habenaria? Carol
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Over The Edge
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