From DEs to LEDs

Discussion in 'LED and other Lighting' started by greengrassgrower1, Aug 30, 2017.

  1.  
    nfhiggs

    nfhiggs Well-Known Member

    Lumens is not the same as photon count (uMols or PPF). Lumens value is heavily biased toward green light. A light can have a higher lumen value but lower photon count if it has a lot of green in it. Plants use photons not lumens. You simply cannot really compare the lumen values of different CCT spectrums.
     
    monkeychief likes this.
  2.  
    wietefras

    wietefras Well-Known Member

    Well that is EXACTLY what I said and indeed what researchers have been investigating. They conclude that "quality of spectrum" has little to no impact. Not theorizing like you do though, but cold hard facts.

    BTW your whole rant about high CRI is nothing but baseless assumptions. Already discredited by actual research done. It's really funny how people can preach that we shouldn't assume which spectrum is more efficient and then in one breath go on to pretend one spectrum is more efficient than others. Practice what you preach.
     
  3.  
    hybridway2

    hybridway2 Well-Known Member

    If one spectrum grows/flowers better then the other then indeed it is more efficient at what it's job is no matter the data #'s & theories.
    Funny how you just spun his words around to be something he didn't say w/ such authority. lol! And that's exactly why no true info can be passed around here & why people don't trust forum info.
     
    Last edited: Jan 21, 2018
  4.  
    hybridway2

    hybridway2 Well-Known Member

    And you, see what I have to deal w/ when you pop up telling truths n shit. Then your gone, back to growing mad bomb w/ your Amares n I'm here listening to guys like that spin everything around so they can look like they saved the day.
    Since "14" baby, we know the truth.
     
    monkeychief likes this.
  5.  
    wietefras

    wietefras Well-Known Member

    Thing is, there is no reliable evidence that any spectrum really is "the best". At best there is some anecdotal evidence showing one spectrum is slightly better than one or more others and then there is other anecdotal evidence showing completely different results.

    You sure sound like someone who spins everything around so you can pretend you saved the day ... :roll:
     
  6.  
    monkeychief

    monkeychief Well-Known Member

    Si, but it gives you an idea of the light's efficiency and output. As previously stated, green at high intensity can replace red. A fact proven by the "inefficient" HPS, according to the "experts", test and research often referred to as facts. If you can accept the HPS is effective at growing cannabis, then you have to try to understand and accept on how and why it works.

    You actually believe this nonsense? Hope others do not based their lighting purchase decisions on these misguided facts . If the "quality of spectrum" has little or no impact then why did the original "efficient" dual 440/630nm or 470/660nm blurple spectrum failed so miserably hence why they started adding whites to fill in the spectrum? Also, if this is true, why did you mentioned previously that the HPS spectrum was "inefficient"? Again, you're basing your assumptions on misinterpreted and generic "research"as "facts".

    I only speak what I have personally experience testing most of these theories, because I got was tired of being disappointed by believing these test and research you referred to as facts. It's obvious some of us unfortunately rely on other's "research and tests" rather than investing the resource and time confirming these so-called "facts". Was the testing you referred to were exclusively on our girls? If not, then I highly recommend you do a side by side with blurple, enhance white and HPS personally and draw your own conclusion on which is the best and most efficient growing tweed. Even Fluence switched from blurple to enhanced white. Don't always believe and base your conclusions on what you read without testing it yourself. The world is not flat just because others say it is. Good luck, no point in carrying this conversation any further since you already know the "facts".
     
    Last edited: Jan 21, 2018
  7.  
    nfhiggs

    nfhiggs Well-Known Member

    No, it REALLY DOESN'T. Not with different CCT's. If you want to compare different luminaires of similar CCT spectrums, then its a useful yardstick. But because of the strong green bias of Lumen measurement, "a little (green light) goes a long way", and pushes the lumen value much higher than it pushes the PPF or PAR value. So a higher CCT luminaire may look more efficient in terms of lumens per watt, but may actually have a lower photon count in uMols/s.

    If you want to compare luminaire efficiency with an accuracy of better than 10%, you have to compare uMol/s output, not lumens.
     
    GrowLightResearch likes this.
  8.  
    hybridway2

    hybridway2 Well-Known Member

    There's certainly plenty of threads on various forum w/ side by sides showing one spectrum outperforming another by a considerable amount.
     
  9.  
    wietefras

    wietefras Well-Known Member

    It's hilarious how you, yet again, do the exact thing which you accuse me of. You provide no facts other than your opinion.

    Yes and then others showing the opposite. A hobby grower doing a side-by side is anecdotal anyway. There are way to many variables involved.

    Is it possible that you get brain damage from using Amare fixtures or something? You two seem to have the same screw loose.

    So I'll just put you guys on ignore. No sense wasting my time on a couple of corporate shills.
     
    Shark006 likes this.
  10.  
    OLD MOTHER SATIVA

    OLD MOTHER SATIVA Well-Known Member

    are you adding a few 100 ppms of calcium and magnesium to the fert mix..?

    thats all i needed to not have the uglies appear

    that and correct ph..anything between a bit below 5.5 and 6 ..i go for 5.6

    its the cal/mag

    i use dry mixable calcium nitrate and magnesium nitrate

    try 200 ppms and 100 ppms respectively then work down
     
  11.  
    monkeychief

    monkeychief Well-Known Member

    Again, I agree with what you're saying, but I was referring to a white spectrum at high intensity that green plays a major role in the spectrum efficiency and overall results. This is why HID also refers to lumens. Was not referring to comparison. I think we beat this one up pretty bad already. It's time to let it die in peace. Cheers!
     
    Last edited: Jan 22, 2018
    Shark006, hybridway2 and nfhiggs like this.
  12.  
    greengrassgrower1

    greengrassgrower1 Well-Known Member

    Not a lot.. It just floods the floor and drys out in between waterings..
     
    ganjamystic and Ryante55 like this.
  13.  
    greengrassgrower1

    greengrassgrower1 Well-Known Member

    Damn DH sorry to hear your still having issues.. Are you still doing PPK? My nutes do stay stable as hell, and i like my PH 6.0 to 6.2..

    I spent 4hrs yesterday cleaning up and removing branches as my girls fucking exploded.. I vegged and extra week to make up for the 4 plants i removed in the beginning. Bad idea, live and learn.. More pics coming.
     
    Ryante55 likes this.
  14.  
    Ryante55

    Ryante55 Well-Known Member

    I did the same shit went from 12 to 9 plants was still a little too much with the 16 day veg. Now I'm moving to 6 per 4x4 I was going to give it an extra week veg but after hearing this they are just getting the 2 weeks. I love jacks nutes all the organic growers I know always comment on how good my nug tastes compared to their organic nug.
     
  15.  
    DesertHydro

    DesertHydro Well-Known Member

    im getting back on track finally! its been bad luck after bad luck lately. tried out some coco trying to see if simplifying was the answer but i got a bad batch of coco that was salty as hell and caused lockout. took me a while to figure out what the hell was going on. first is lightened the feed and they got worse so i stepped the food up. still got worse. someone told me to check the runoff and it was sky high. been flushing every few days pretty heavy and they have absolutely done a 180. new healthy green growth on all plants. went through and defoliated and removed all the damaged stuff i could get to yesterday. today im gonna go through and lollipop. these are getting flowered in about a week. ive been too ashamed to post pics until they recovered lol. it got bad there for a while and i was questioning all my life choices lol. at least this happened in veg and not flower! from now on i am logging my ph/ppm in and out on a weekly basis to look for trends.
     
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  16.  
    DesertHydro

    DesertHydro Well-Known Member

    oh and that ppk run was a flop because i overwatered from the get go right after transplant causing issues. got it figured out. that room is gonna EXPLODE here in a few weeks. got clones started for the next run. should have started them a month ago but trying to stick to the numbers :(
     
    hybridway2 likes this.
  17.  
    ANC

    ANC Well-Known Member

    I had to back off from 200 to about 80. the plants still look a tiny bit shy on Mg but no more calcium problems.
     
    OLD MOTHER SATIVA likes this.
  18.  
    Ryante55

    Ryante55 Well-Known Member

    Jacks is the simplest I dip my clones in full strength jacks 321 it doesn't burn them and the same ratio gets you to the end of flower.
     
    jonsnow399 likes this.
  19.  
    greengrassgrower1

    greengrassgrower1 Well-Known Member

    Dilly Dilly,

    Day 13

    Quick pics of the room.. Things are going as planned.. lol 1st time running this strain its Buff #2 she was created and found by Okie and Bean.. i have 10 of them. I Love them Boys always making new heat!. I also ended up with a Pieface and Ultavoilance.. They are huge so each of them got a corner spot.. A lot of folks say u get purple stems when u using LEDs?? Not for me..

    20180129_175049.jpg
     

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  20.  
    calitrees916

    calitrees916 Member

    Bean back in the house!!! Lol
    How are the babes doing over there?? Look good from the pics. I still trying to fill these nets so I can flip. It's coming real soon tho
     

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    davidcup, hybridway2 and ganjamystic like this.

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