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  1. cobshopgrow

    modular overkill led striplight build

    all good, all flawless. tops are seeing a 1200ppfd at a 240W in this 3x3 (86x86cm ,0.74m²). topdressed some organic pellets today and a tablespoon bat guano, hoping it wont be too much, well see. no need for calmag or anything else then organic dry fertilizer and water. the red petiholes are...
  2. cobshopgrow

    Custom DIY 240 watt 6 bar LED grow light!!

    thanks will have a look, no stock for these anyway, world sucks atm.
  3. cobshopgrow

    Custom DIY 240 watt 6 bar LED grow light!!

    210 would be awesome, i just couldnt find a real product having this? https://www.futureelectronics.com/de/our-solutions/lighting-solutions/narrow-band-phosphor-technology#products no strips linked there, but stating >200 lpw. in this datasheet the max is 172 lpw...
  4. cobshopgrow

    Custom DIY 240 watt 6 bar LED grow light!!

    yeah, am curious too, just would need to get a way better picture of them before making any decission, but i honestly considered using them as the only light source (while i do have mono strips too i could alays add). sadly lots of other stuff to do atm, so guess there is no time for a new...
  5. cobshopgrow

    Custom DIY 240 watt 6 bar LED grow light!!

    downloading their XLS and open it. https://bridgelux.com/product-simulator prob a fake email works too. used google sheets to open it. qmol/J is to the right in the table, goes from 2.2-2.9, but i have no feeling for the F90 nomenclature and i am on a 13" notebook atm which is pita for sheets...
  6. cobshopgrow

    Defending HPS in a LED world

    and even if, for 600W it wont be that much, also it probably went long days beeing a Auto. lots energy spent on. ROI for my Led fixtures was less then a year for the complete fixtures only over the saved electricity, which is about 35$ cent now over 40 cent. using them for 3years now, would...
  7. cobshopgrow

    Custom DIY 240 watt 6 bar LED grow light!!

    are you still happy with your F90s? the concept is quite interesting, i wonder it havent cought more attention here. would like to know the ppfd output, looks like its quite good. "For traditional LED technology, higher CRI results in a lower efficacy. By replacing broadband red nitride phosphor...
  8. cobshopgrow

    Anesia Seeds, want my money back !

    same for me, uva isnt killing spores (that much). yea, would also say airy buds or more there is hardly any chance for grey mold below 55% RH, also grey mold dont like high temps over 30C. sounds youre safe in that regard. never had mold again after i installed my dehumi and set it to 55%...
  9. cobshopgrow

    When to boost lumens during flowering?

    there is a level from where your plant canopy will be saturated, you can push that a bit with CO2, but just to certain point and you would need to take more factors in to account. the fuller your canopy gets the more the plant can take, simply due to the fact that the photons are shared over...
  10. cobshopgrow

    Dissolving seabird guano granules.

    btw. i seldon brew tea anymore, atm not at all, the soil all does it on it s own when its moist and full of bennies anyway, but it dont hurt to brew.
  11. cobshopgrow

    Dissolving seabird guano granules.

    i wont panic that much. i use organic fert granules, but my guano is powder. my granules dont stay for months, thats for sure, they disolve well in EWC rich soil on their own. they act maybe within 2 days or such also. topdress and see that there is bacteria to eat your pellets (its there...
  12. cobshopgrow

    Anesia Seeds, want my money back !

    how long are they in flower mode and whats the daylight hours now?
  13. cobshopgrow

    Dissolving seabird guano granules.

    hm sounds like a lot of work for little benefit. i would simply topdress your granules or mix them in to the soil, may brew some tea, funghi, bacteria, sugar and bubbles, pour that over your topdressed granules and i guess you should be fine. otherwise grind it, i wouldnt cook it, as you say...
  14. cobshopgrow

    Over water with Athena nutrients?

    seeing the claws way too much nitrogen. overall too much nutrients, EC 2.7 is a bit crazy in my eyes.
  15. cobshopgrow

    If you could only use three amendments...?

    interesting, seems i dont need any epsom anymore in organics. but the pellets do contain epsom salt, quite sure, so that may tricks me.
  16. cobshopgrow

    If you could only use three amendments...?

    1 5-3-7 organic fertilizer pellets 2 bat guano 3 last but not least EWC
  17. cobshopgrow

    Plastic vs. Fiber Pots

    true, while you can avoid that by wrapping the fabric pots in celophane foil. at some point it will just imitate a plastic pot of course.
  18. cobshopgrow

    modular overkill led striplight build

    thanks Mo. this is the smaller 3x3 86x86cm tent with 2 Gelatos in 5 Gallon pots using second time recycled soil. soil have a lot EWC and biochar, but probably whats working the most there now is the half cup 5-3-7 organic fertilizer pellets i gave a few days after going 12/12, will give them...
  19. cobshopgrow

    Is far red dead

    targeting mostly the UV8 receptor (280-315nm). https://www.nature.com/articles/s41598-017-18073-8 https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41598-017-18073-8/MediaObjects/41598_2017_18073_Fig2_HTML.jpg?as=webp still a good read and pictures regarding FR. as...
  20. cobshopgrow

    What would happen if my voltage exceeded my driver?

    am a bit out of COBs, but what you plan is like a very classic 5 pcs Cree CXB3590 240W build with exactly the driver youre using.
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