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  • 1 Post By cdayinflorida

Calling all LED growers out there!

This is a discussion on Calling all LED growers out there! within the Semi Hydro / Lights / Greenhouses / Accessories forums, part of the Orchid Culture category; The days are short and the light is scarce even for my NE window which ...

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  1. #1
    jai_star's Avatar
    jai_star is offline Senior Member
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    Default Calling all LED growers out there!

    The days are short and the light is scarce even for my NE window which usually recieves a lot of light. So deciding to purchase a LED grow panel just to support the orchids while they get a bit more light in the winter because they are so far away from the tropics I just want some feedback on anyone who uses LED on orchids.

    How far above do they need to be on top of the foliage and does it work well with orchids?

  2. #2
    cdayinflorida's Avatar
    cdayinflorida is offline Senior Member
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    I sell a few LED bulbs and fixtures at work. I've been to many tradeshows for the big manufacturers. In my humble opinion...the technology is still not right.

  3. #3
    Kmac's Avatar
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  4. #4
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    Quote Originally Posted by Kmac View Post
    You might find this thread of interest...

    http://www.rv-orchidworks.com/orchid...follow-up.html
    Thanks “Kmac” for sharing the link and suggesting threads related to LED grow lights for orchid.

  5. #5
    Magnus A's Avatar
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    Everything depends on what kind of orchids you grow. For normal extra light in a window I would not use LED but in a dedicated growing cabinet I found LED´s to work perfectly fine.

    I have used LED´s in one of my growing cabinets as the ONLY light source for 4+month and moth mosses and orchidsare doing great!
    http://www.rv-orchidworks.com/orchid...ing-areas.html

    The LED developement goes terrible fast and if you investigate the market you can find LED with good light spectra and excelent light output end efficiency! The statement that they are not ready for orchids is not valid anylonger as there are suitible panels out on the market, though expencive...

    /M

    /M

  6. #6
    ECC_lectic's Avatar
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    The quality of LEDs is far more variable than the quality of fluorescents. I have excellent LEDs that are inexpensive, fit into regular lamp sockets and produce a directed beam that is still bright over a metre away. But there's far more crap out there than good products, or else the cost is too high. It's very much buyer beware.

  7. #7
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    raybark is offline Senior Member
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    Ray Barkalow
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    The distance is dependent upon the light output and density of chips.

    A 13w LED bulb will put out about the same light level as a 2' HO T5. There are lights out there (like the ones Alla referred to) that jam that output into about 6"-7" of length, so will be more intense than the fluorescent, and can be moved back a bit. Likewise, you will find 4' "T8 replacement" LEDs that are 28 watts, but have that spread out over a much greater area, so have (28/13)/8 = roughly 27% of the light intensity of the previous example.

    White LEDs are improving, although unlike fluorescents, where phosphors are blended specifically for improving the spectrum for plants, most white LEDs are very heavy on the middle of the spectrum and blue, so you'll find that some are made with red chips added to correct the imbalance.

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