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Thread: White LED experiment

  1. #97
    Av8tor1's Avatar
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    Thanks MM

    Paul.... its all just a vivid daydream, now back away from the hookah
    The light that you see does not originate from the LED old friend


    hehehehe, not a bad idea at all.... but one step at a time
    Av
    Last edited by Av8tor1; 07-19-2010 at 02:11 PM.

  2. #98

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    Ok so for another question... So far it sounds like the T5s price wise and result wise still ave the upper hand but what about in comparison to T12s and T5s? Surely they are cheaper but in your opinion would you see better results with 1 or 2 LEDs vs 1 T12?

    Great work btw Butch

  3. #99
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    not really an apple vs. apple comparison Yann.
    The LED's put a lot of energy in a small area, so more like a ubber efficient CFL then a linear tube
    The big hurdle is now cost, to do an entire rack would require quite an investment.

    However, if you wanted a 10 or 20 gallon UHL with a peltier then LED would be the light of first choice. High intensity with no heat.... seemingly ideal for such an UHL apps

  4. #100
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    Quote Originally Posted by Av8tor1 View Post
    not really an apple vs. apple comparison Yann.
    Do you have any reception issues with either of those apples?

  5. #101
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    I did but I found if i held them a certain way it didn't matter :P

    hehehehehe you've been in rare form lately Mobile, someone must have spiked the Guinness errrr Tennents

  6. #102
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    Quote Originally Posted by Av8tor1 View Post
    I did but I found if i held them a certain way it didn't matter :P

    hehehehehe you've been in rare form lately Mobile, someone must have spiked the Guinness errrr Tennents
    I'm not keen on lager, so I'll pass on the Tennents. I did have some very nice microbrews last time I was in the US though. Guinness is very nice when it's kept well, but I only usually drink it in the winter. A nice cold Belgium Framboise is my favourite beer in the summer or nice real ale when I visit a pub

  7. #103
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    Have any of you LED gurus considered constructing identical terrariums with a different light source in each. Starting with the same soil mix and a cutting from the same plant in each terrarium? I suppose you would have to tweak the air flow and size of tank according to the light source. But if you could get all tanks to around the same temperature that would be an amazing experiment IMO. It wouldn't be necessary to do all of these experiments at once obviously but being able to see side by side comparisons would be really neat, I suppose it would take a little extra work to set up though.

    I was thinking something like a ping leaf cutting or drosera cutting under a MH/HPS, T5, T8, T12, CFLs, LED or whatever would fit the scientist's fancy.

    I would do it myself but first I have to self-educate and try to understand HALF of what has been mentioned thus far in the thread : p
    (I should probably learn how to solder and read an assembly map as well hehe)

    I realize this isn't a ground breaking idea, but my visual learning curve was hoping someone was thinking about it. Or atleast thinking about posting more pictures!

    Cool work with the LEDs guys,

    -Phill

  8. #104
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    Phil, Right now its still a matter of "will it grow plants" more then "how well it will grow plants" when compared to the other formats you mentioned.

    To do such a comparison we would have use equal wattages in each format. Otherwise the experiment would be biased toward one format or another.... not to mention balancing the inequalities of reflector vs optic vs whatever.

    Currently I'm only using one Luxeon Rebel Tristar module at 75% of Imax (maximum current rating) so I'm basically using right at 7watts.

    Buttttttttt consider what is happening so far with just 7 watts, that is the truly impressive part.

    So yes, it's a great idea, but just not really possible yet.

    Butch
    Last edited by Av8tor1; 07-24-2010 at 04:51 AM.

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