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  1. J

    CXB3590 6500K, 5000K, or 4000K for 4-5 week veg, with moderate LST?

    Thanks everyone for the replies. I am planning on a 2x2.5' area for veg only. I need high efficiency so going to drive 6 cbx3590's at only 700mA, with 1x HLG-C120B-700mA meanwell driver. At full power this will give me at least 700 PPFD, which sounds like that is all you want for veg. Of...
  2. J

    CXB3590 6500K, 5000K, or 4000K for 4-5 week veg, with moderate LST?

    I would like to avoid too much early stretch, as the girls cannot get much taller than 4 1/2 feet from top of soil, when flowering is complete. I do plan on some moderate l.s.t, to keep them fairly short to max out yield and even out the canopy. My flower K rating of the same model is 3500K...
  3. J

    cree3590cxb high efficiency setup: driver and layout questions

    @BlackD.O.G https://www.dropbox.com/s/hqgj9n5qxb9xrei/DIYCOBLEDCalculator.jar?dl=0 You will need the lastest java to open and use this app. @Shugglet So I see what you are saying, from the specs on this driver, thankfully I do have room on the circuit for 7amps. My thinking was that with a...
  4. J

    cree3590cxb high efficiency setup: driver and layout questions

    Finally my ahah moment! thanks @Rayne and @Desmond J ! So my new plan is to go with 22- CXB3590CD@36V 3500K 22- SST105 Passive Heatsink : This is a reduction in hs size, and will still provide more cooling than it needs at 700mA. Slightly lower price as 18 of the larger size as well. rated at...
  5. J

    cree3590cxb high efficiency setup: driver and layout questions

    Greetings RUI community! Been living on here for a few weeks soaking up all I can from you amazing DIYers. I'm about ready to put together an order for Jerry from Kingbrite, but I am not sure about which drivers I should use with this setup. What I need is a super efficient setup for extreme...
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