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  1. mefunky

    Introducing CobKits.com - specializing in DIY and Citizen COBs

    I understand that drivers are not 100% efficient. But I don't think he was asking about efficiency I'm pretty sure he was asking about meanwell drivers going over stated wattage. I'm on a phone so I don't type long winded posts .
  2. mefunky

    Introducing CobKits.com - specializing in DIY and Citizen COBs

    Meanwell driver are known to go over rated wattage. My hlg120 48a drivers pull 168 watts at the wall .
  3. mefunky

    LETS SEE EVRYONES NEWEST COB YIELDS!

    My tent is 2×4×5 tent , lighting is 6 cxm22 3500k 90cri chips and meanwell hlg320h-48a 310 watts at the wall. I run 6 plants 2 gal pots on about 3-4 weeks veg till about 1 foot tall . 38-39 watts a sq/f I get between 52-60 grams a sq/f depending on the strain I'm running.
  4. mefunky

    Troubleshooting new COB grow

    I get those symptoms on leaves that are about 6 inches directly under a cob. If they are off to the side of the cob they can get about 4 inches away before symptoms show up. I'm running 38 watts a sq/f , upper canopy Temps are about 82°f humidity about 50% give or take 1%. I don't think it...
  5. mefunky

    How to lower temp in tent

    Making the drivers remote will help a lot with heat. I'm running 300 watts of cobs in a 2x4 tent and I have a hard time keeping my Temps up sometimes, gets up to about 81f and my exhaust fan is on low. Ambient room temp is 74. Hope you get it figured out man good luck.
  6. mefunky

    PAR test of COBs vs Samsung 561 boards

    Front row seating. Definitely interested in the results, I've been curious about those boards. Awesome work man.
  7. mefunky

    Introducing CobKits.com - specializing in DIY and Citizen COBs

    I have the same driver, turned all the way up it pulls 390 watts or so at the wall. Not sure of the amps it pulls.
  8. mefunky

    Introducing CobKits.com - specializing in DIY and Citizen COBs

    You will need to wire them parrell with that driver. Take a look at the luminus cxm22 chips a little cheaper than the 1818's and seem to be a little better. good luck
  9. mefunky

    High End COBs vs $2 COBs...

    I've used several open Frame Chinese drivers for led reef lighting . I never had a fire or got shocked but most of them started making noise or died after a year or two . by the time I replaced them I could have bought meanwell and saved lots of time and a little money. Just my experience with...
  10. mefunky

    CXM22s Won't Light

    Not a thing wrong with those chips , I use them . Glad you got it worked out
  11. mefunky

    CXM22s Won't Light

    I'm on my mobile so I can't load pics. As long as they are all hooked up positive to positive and negative to negative. I've always run individual sets of wires
  12. mefunky

    CXM22s Won't Light

    Sorry it's early . I'm not sure about external dimming ,I have A drivers . With proper cooling I don't think you will have a problem with thermal run away unless something is wrong with the chip like bad strings of diodes , that would cause it to draw a different voltage. I'm sure someone will...
  13. mefunky

    CXM22s Won't Light

    A lot of folks here run parallel setups including me. No problems . Just don't mix chips of different brands . You can also limit Voltage to the chips by adjusting the voltage on the driver. Good luck
  14. mefunky

    I need More Light

    Cxm22's are 50v cobs I have 8 of them.
  15. mefunky

    Citizen 1212 grow results

    What Kelvin and cri did you use op ? Very nice !
  16. mefunky

    Testing Timber's B-lux Decor Vero fixture(1750k)= Hello beautiful SPD, finger still on the trigger

    Thank you so much, tons of good vibes heading your way. I've been wanting to setup a extra tent for months now. Used is perfect I'll just scratch it up any way. Lol. The girls will love it! I get the 660nm chips but what does the 730nm do? I'm not real versed in the far red spectrum . Thanks...
  17. mefunky

    Testing Timber's B-lux Decor Vero fixture(1750k)= Hello beautiful SPD, finger still on the trigger

    That's awesome ! Never thought I would get lucky this morning. Just a excuse to setup another tent .
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