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  1. jarvild

    DiY LEDs - How to Power Them

    HLG 240H 24B powering 9 or 10 LMC561c strips
  2. jarvild

    LED and Calmag issues.

    Then you shouldn't need more than 1.2ec max for nutrients
  3. jarvild

    LED and Calmag issues.

    Post 270- those never saw temps above 76 degrees and never cared about VPD, dehuey set at 50-60% full run
  4. jarvild

    LED and Calmag issues.

    Are you adding Co2 to your grow ?
  5. jarvild

    DiY LEDs - How to Power Them

    I get 268 draw watts from my HLG 240-B drivers
  6. jarvild

    DiY LEDs - How to Power Them

    Do you have a dimming pot on the driver ?
  7. jarvild

    Hey old farts..how many over 50 yrs?

    66, been here at riu since 2010
  8. jarvild

    DiY LEDs - How to Power Them

    https://www.ledsupply.com/led-drivers/mean-well-apc-constant-current-led-driver?gclid=Cj0KCQiAuP-OBhDqARIsAD4XHpeDAM14GewDkBMWFEWlBc0mC_jRNNBsXqekUeFHxtEC5v7FzzjHXBoaAqtkEALw_wcB, I run 25 XP-E's per APC 35-700 which are a mix of Reds, Far Reds, IR and UV's.
  9. jarvild

    Coco and overwatering

    9 ltr pots, fed 2ltr's once a day, to run-off once a week
  10. jarvild

    Coco and overwatering

    Even in full flower my coir gets no more than 1.4 ec max and I never feed more than once a day, pot size to plant size will always determine feeding schedule
  11. jarvild

    LED and Calmag issues.

    Oh, most failures with new growers comes from overwatering, over nutrient use or too much lighting for their plants size, why throw another variable at them until they have the basics down making them think that all the problems are coming from VPD ? VPD out of range is not the most common...
  12. jarvild

    LED and Calmag issues.

    Same spot
  13. jarvild

    LED and Calmag issues.

    Something wrong with these never paid attention to VPD plants, grown under LED's ?
  14. jarvild

    Bad growing advice

    Cannabis specific Nute's? I guess farmers use specific nute's on all their crops they grow now ? ridiculous,
  15. jarvild

    LED and Calmag issues.

    Do you have side by side comparisons of plants grown under prefect VPD vs non VDP plants ?
  16. jarvild

    coco experts pls help!

    I'm not needing help with anything in my garden, been growing for 40 years and it doesn't matter what nutrients I use once you learn what the plants wants it's as simple as that,
  17. jarvild

    coco experts pls help!

    But yet it still cost me less than $90 per pound produced and that's including all lighting and environmental controls along with nutrients and media, so what's your complaints? That someone isn't using your same nutrients line ? Did you hear me say anywhere that Jack's was shit ?
  18. jarvild

    LED and Calmag issues.

    I never pay attention to VDP and my plants grow fine no matter what type of lighting I'm running, when you realize that the best HPS might get you 1.7 umols and compare it to most modern LED's at 2.4+ umols and you realize that every 1 umol is to the 10th power you understand that LED's are 1/3...
  19. jarvild

    I need help with selecting new nutrients!

    Nutrients are nutrients, just pick one and learn to grow with them, never mattered what nutrients I used and this is from 40+ years of growing cannabis
  20. jarvild

    Samsung LM281B 3000K+5000K+660nm+UV+IR 120W PCB Panel

    Why not build your own supplemental lighting instead of relying on someone else's recipe for comparison ?
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