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Thread: LED lights?

  1. #1
    budd is offline Registered
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    Question LED lights?

    Does anyone know anything about using LEDs in indoorgrowing? Would ease the heat problem and save energy? What should the wavelength be? How many lux is needed? Has anyone ever tried it?

  2. #2
    Imotep's Avatar
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    Thumbs up

    one day someday.
    from what ive seen theyre not as good as is needed yet or cheap enough.
    LEDs will be a force in the future though.
    HORNY FOR EVIL

  3. #3
    DR. Science is offline Registered
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    led

    I know there is a guy doing a test at overgrow, i think. I belive that its possible, but more research needs to be done, something Advanced nutirents should look at.

  4. #4
    DR. Science is offline Registered
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    Led Lights

    this page made me say, holy shit. if you need led lights, these people have it.Sage Lights

  5. #5
    notanovice's Avatar
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    dont bother

  6. #6
    DR. Science is offline Registered
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    Angry

    Listen notanovice, I don't think you can just come and say that people should just not bother. Who the hell are you? Science and knoledge are the product of misfits going beyond the confines of custom and habit to increase the possible. Those who are complacent and apathetic, who wish to do things only as they have been done before, will inevitably get the same results as everyone else. Only those who will take the road less traveled by will find the better methods. Shame on you notanovice, go find a cave to hide in with your dogmatic stupidity. And to all those who veture into unknown territory, I thank you, and so to will humanity.

  7. #7
    notanovice's Avatar
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    Unhappy

    Quote Originally Posted by DR. Science
    Listen notanovice, I don't think you can just come and say that people should just not bother. Who the hell are you? Science and knoledge are the product of misfits going beyond the confines of custom and habit to increase the possible. Those who are complacent and apathetic, who wish to do things only as they have been done before, will inevitably get the same results as everyone else. Only those who will take the road less traveled by will find the better methods. Shame on you notanovice, go find a cave to hide in with your dogmatic stupidity. And to all those who veture into unknown territory, I thank you, and so to will humanity.
    if you want to use l.e.d. go ahead, who am i to stop you.
    if you got the cash, do what you want.
    until i have tested and proven that l.e.d.`s are BETTER to use, and more econimical to use, then i will stick with what i know NOW, but until then.
    also i would like to ask you , who are you to judge me?
    i did not tell you or make you read this, just because you have interest in the sale of l.e.d.S and you have a DR. infront of your screen name, doesnt give you the right to judge and attack me in the way that you have.

  8. #8
    notanovice's Avatar
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    DR. science

    thunder bay aye hoser??

  9. #9
    DR. Science is offline Registered
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    I apologise

    Quote Originally Posted by notanovice
    if you want to use l.e.d. go ahead, who am i to stop you.
    if you got the cash, do what you want.
    until i have tested and proven that l.e.d.`s are BETTER to use, and more econimical to use, then i will stick with what i know NOW, but until then.
    also i would like to ask you , who are you to judge me?
    i did not tell you or make you read this, just because you have interest in the sale of l.e.d.S and you have a DR. infront of your screen name, doesnt give you the right to judge and attack me in the way that you have.
    If i have painted into a corner in which you do not belong, I regret horibly for having insulted you. That is, if you agree with my comments, with regard to the production of knoledge and the advancement of science, then we have no issue.I thank you for your dialogue.

    warren_andrew_graham@hotmail.com

  10. #10
    DR. Science is offline Registered
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    Some good science i found. please share.

    http://www.botany.uwc.ac.za/ecotree/...trum.htm#light
    this specifies the light frequencies that we should have for the photosythesis process to occur. IT will be attempted!/

  11. #11
    notanovice's Avatar
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    Thumbs up thanx for the site

    thank you for the inovative imformation. i did not mean to say, never bother, it was meant to be, dont bother til imformation is available to back up the economical, and heat, and usefulness of L.E.D.`s. for i am one of those who have tried everyway known to propagate and grow. i am one who welcomes new ways. my mind is open, and i learn new things everyday.

    P.S.
    i am originally from southern ontario
    between chatham and tilbury
    a very small town called Merlin
    take care and have a great day

  12. #12
    DR. Science is offline Registered
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    Lightbulb Led-Uvb experiment

    I'm currently in contact with a distributor of Led lights. I have a project in the planing phase to grow plants using wavelength specific lights to ensure that maxmum energy is be transformed from electrical energy to useful light energy to the pant, and, ultimately, by easing the growth of the plant by using advanced hydroponics techniques, to usable energy to the plant cells. I will report on my progress as it develops.

  13. #13
    notanovice's Avatar
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    Thumbs up great

    i am very interested in those findings.
    please keep us posted

  14. #14
    sy9942 is offline Registered
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    If you've got an account on overgrow you might recognize my username. I'm one of the first people who gave LEDs a shot, and I must say that for 99.999% of people, it's a waste of time. I'm not trying to be a pessimist, I'm just... Well, here, let's simply put it in perspective.

    Do you take a HPS lamp and plug it directly into the wall? No, you don't, you plug it into a piece of fancy electronic equipment called a Ballast. Well, similarly with LEDs, connecting them directly to a power source without any driver circuitry will not get you the kind of plant growth you're looking for.

    So the key problem is the ballast. Ballasts for LED lighting of plants don't actually exist, so you have to build one. This is why for 99.999% of people, it's a waste of time. You need to be an armchair electrical engineer in order to throw together something that will give you results.

    If you want to build your own ballast (pulsed DC, PWM), here are my suggestions:
    - variable frequency from 2kHz to 20kHz (honestly, a set 20kHz would be fine)
    - variable pulse width from 1% to 10% (this is required, as hopefully you'll have the ballast long enough that you'll be able to use it with different types of LEDs, which may have different tolerances to high current pulsing. Being able to back down the pulse width will keep you from frying your LEDs)
    - selectable constant current in multiples of 20 mA, from 20mA to 500mA.
    - multiple "channels" which can have their pulse width and frequency adjusted independently.
    - A very accessible on/off switch, just in case.

    The best way that I've encountered to do this type of thing is by basing it around a PIC microcontroller. The easiest of course is the PICAXE ( www.picaxe.co.uk ) which can be programmed in BASIC and doesn't require special programming hardware to use. You use the microcontroller to take care of frequency and pulse width, you use JFET transistors configured as current regulators (see here) in order to handle current regulation.

    So if you're the EE type, by all means. Get some 730nm, 660nm and 430nm LEDs and get crackin' on that ballast. (note: 470nm and 640nm could be added as well)

  15. #15
    Shadow Smoke is offline Registered+
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    HOLY FUGG!

    i wander how many freggn les you would need! i might give it a shot with some other kind of plant maybe a pea plant. but thats gonna have to wait till i have money
    I hid my weed in the shower for the longest time. I noticed that no matter how hard mom looked for it she never found it. This made me wander. just how long can i go with out takeing a bath before someone finaly catches on? I mean FUGG! how long does it take for this shit to put it self in a bag?

  16. #16
    Shadow Smoke is offline Registered+
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    COOL!!

    hey i got an idea from this post and looked into it


    ITS ALREADY BEEN DONE!! you can grow plants with LEDs!

    problum is that inorder to grow a very small -plant you need about 300 lights riged up in a very small area so its not yet practical.

    BUT i think maybe with the advancement in fiber optic tec. and the use of sound waves it might be possible to grow useing less power than it takes to run a wrist watch!

    most of this info is hear say.. but just think about that for a while maybe some day we can grow more plants in less space than ever before : )

    but yes you can grow a healty plant with LED!
    I hid my weed in the shower for the longest time. I noticed that no matter how hard mom looked for it she never found it. This made me wander. just how long can i go with out takeing a bath before someone finaly catches on? I mean FUGG! how long does it take for this shit to put it self in a bag?

  17. #17
    stra8outtaWeed's Avatar
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    here are my leds and i get great production!! took me a while to find a light i was happy with but i do everything fromm clone to finish under LED's
    Attached Thumbnails Attached Thumbnails LED lights?-035.jpg   LED lights?-003.jpg  

  18. #18
    jakester's Avatar
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    Yeah, that conversation was from 2004. I doubt you will have to do much convincing around here nowadays!

    Nice grow!

  19. #19
    stra8outtaWeed's Avatar
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    Quote Originally Posted by jakester View Post
    Yeah, that conversation was from 2004. I doubt you will have to do much convincing around here nowadays!

    Nice grow!
    thanks

    i did not look at the date....ooops! been awhile since i have been on a grow forum...gotta retrain!


  20. #20
    GodBud's Avatar
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    [QUOTE= took me a while to find a light i was happy with[/QUOTE]



    What is the model you are using there?

    Thanks

  21. #21
    stra8outtaWeed's Avatar
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    Quote Originally Posted by GodBud View Post
    What is the model you are using there?

    Thanks
    WEX-C150....if you want to see more check my bottom sig

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