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07-02-2013, 05:52 AM
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Member
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Join Date: Feb 2013
Posts: 30
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Quote:
Originally Posted by naoki
Have you been growing them in this setup for a long? I'm surprised to see that you can flower them with 4.8W of white LEDs (or is it a typo?).
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Since I bought them, about 4-5 months now. 1.2 watts per LED it is. |
07-02-2013, 04:43 PM
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Senior Member
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Join Date: Apr 2012
Zone: 2a
Location: Fairbanks, AK
Posts: 975
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Quote:
Originally Posted by mozzzlove
Since I bought them, about 4-5 months now. 1.2 watts per LED it is.
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Excellent! I'm still surprised, but I guess that you are putting LEDs close enough (maybe with a focused lens?) to the plants, so they may be getting enough light. I hope they will keep growing. Are you using a mixture of warm white (around 2800K) + cool white (5000K) LEDs? |
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07-02-2013, 11:25 PM
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Member
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Join Date: Feb 2013
Posts: 30
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Quote:
Originally Posted by naoki
Excellent! I'm still surprised, but I guess that you are putting LEDs close enough (maybe with a focused lens?) to the plants, so they may be getting enough light. I hope they will keep growing. Are you using a mixture of warm white (around 2800K) + cool white (5000K) LEDs?
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Yes, about 25 cm right above each of them and with lens. Using just one color temp. I think about 6000K-6500K.
Tq. |
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08-14-2013, 06:42 PM
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Senior Member
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Join Date: Jan 2013
Location: NJ, USA
Posts: 288
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Quote:
Originally Posted by Discus
If you'd like it to get colder in there, you could try "stacking" peltiers (mount several together in a "sandwich" with bigger units cooling smaller ones, with the last one cooling your tank; if you do enough of this, you can approach cryogenic temperatures).
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I'm really interested by this. Do you just stack them on top of each other with thermal grease? Is it that simple? |
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10-17-2013, 06:06 PM
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Moderator
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Join Date: May 2005
Zone: 7b
Location: Queens, NY, & Madison County NC, US
Age: 44
Posts: 19,374
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Very interesting setup!
__________________
"We must not look at goblin men,
We must not buy their fruits:
Who knows upon what soil they fed
Their hungry thirsty roots?"
Goblin Market
by Christina Georgina Rossetti
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10-18-2013, 03:10 AM
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Senior Member
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Join Date: Sep 2006
Zone: 10a
Location: Geelong, Victoria
Age: 56
Posts: 2,479
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Amazing!
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10-31-2013, 08:55 AM
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Senior Member
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Join Date: Jul 2008
Zone: 8a
Location: West Midlands, UK
Age: 49
Posts: 25,462
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They look really happy  |
10-31-2013, 12:39 PM
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Senior Member
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Join Date: Jul 2013
Zone: 10b
Location: Miami, FL
Posts: 4,711
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This is absolutely awesome - and out of my field:-)!!!
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10-31-2013, 11:32 PM
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Senior Member
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Join Date: Dec 2010
Zone: 9b
Location: Northern California
Posts: 1,563
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Wonderful set-up! Nice to have so much control.
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09-08-2016, 11:33 PM
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Moderator
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Join Date: May 2005
Zone: 7b
Location: Queens, NY, & Madison County NC, US
Age: 44
Posts: 19,374
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I'm wondering if by any chance you would have an update for us? I'm very interested in the peltier units and how they have worked out for you.
__________________
"We must not look at goblin men,
We must not buy their fruits:
Who knows upon what soil they fed
Their hungry thirsty roots?"
Goblin Market
by Christina Georgina Rossetti
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