Recent content by rocho

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    new DIY COB LED project, which best cob distribution?

    Hi everyone. I know that COBs no longer inspire anyone but I still prefer them to SMD because I love DIY and having a lamp that can be repaired with two screws and spending 30USD if a single COB dies. I wanted to build a new panel with vero29 gen8 I'm going to put 6 COBs and was wondering if...
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    April 2020: What are the BEST flowering COB's right now?

    Hi, do you take any instrumental measures about that? So we could say quantum bar and board has more penetration then COB..or better sayd COB are more susceptible to panel distance?
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    Mars Hydro FC 6500 Vs Geekbeast plus vs ?

    Hi, could you tell me how do you calculate cct in that way? Nonody consider that marshydro adopts more smd than light geek so prob they run cooler and long lasting?
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    Still no independent review of the GeekBeast Pro???

    Hi, i know very wel what shane share on that migro "ranking" I mean the data claimed from geeklight about their new "plus" model. how can a light with "claimed (probably not actual data like migro's owner measure show about the 6bar / pro version 2.78 declared VS 2.27 actually measured) 630W...
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    Still no independent review of the GeekBeast Pro???

    So nobody comment so fake claims? I am a owner of this light but I do not love to be kidding. As on alibaba where they claim 3.03 µmol/j
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    Still no independent review of the GeekBeast Pro???

    I own the PLUS VERSION : they claim 630W of power and 1820 µmol/s (3.03 µmol/j) it is of course impossible and could realistically be 630W power 2.88 µmol/j ( 1820 µmol/s) ---> LOWER µmol/j value or 630W power 3.03 µmol/j (1909 µmol/s)----> BIGGER µmol/s value or finally 601W power 3.03...
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    Still no independent review of the GeekBeast Pro???

    I bought the new 8 bar model but honestly i think could had be a better buy the new eight bars model from marshydro..significative more number of smd at quite identical Watt and a lil less expensive..without inefficient IR and UV chip( even if I do not know about heatsink, specs says it should...
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    The Chinese Quantum Board Knock Off Builds

    Hi guys. Hoping somenody could anwer to a little question Mini growing tent (50x50cm/19.7" surface) and I' m vegging with a kingbrite QB 3500K 90CRI samsung LM301H without any far red, IR or UV drive at 50W. I have got aldo a DIY citizen1212 90 CRI, 250W(50W each cob, active cooling) Citizen...
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    First ”stealth” micro grow (75w diy led) - all help appreaciated

    Well done! Same identical experiment of me!
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    ozone while drying?

    Great post..old but ever gold. Thanx!!
  11. R

    COB distance

    Hi, it's the first time I hear this. Could you please argue this theory? does it apply to any type of LED (COB, QB) and brand? best regards
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    Ventilation 101...Let's make this a sticky!

    Hello, Maybe it has already been explained right there but I am not very skilled with your language and even less skilled with the theory concerned the air physic. If I reduce the speed of a small 187m3 / h extractor by a dimmer could I know how many W i may give to get ish 80m3 / h? I only...
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    PeakSeedsBC Kush Crosses

    And half an year later ....so NL as not smell/stealthy strain is just a legend? Somebody (ogecil) ever done a smoke report of peakseedsbc kushnorthernlight?
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    Bridgelux EB Series Build

    Hi again, I have another last question. Do you think can I manage 10 (mixed)EB strips whit a 200v cc driver? I already have six EBseries stripes, first generation. 22.1V at 700mA but i can not find any calculator, according to data sheet should be 21.7V run at 500 mA and 21.0V at 200mA.(I can...
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