Recent content by DoctorDelta9

  1. DoctorDelta9

    First LED build CXB3590

    Never even stared the pineapple unfortunately. I did build the other 2 lights see pics below. I mounted them together using threaded metal rods thru i-hooks. I experimented with fans atop the heatsinks, shrouded and open. Cooling the lights was never an issue. I just wanted my room temp as cool...
  2. DoctorDelta9

    My experience with Cree CXB3590. Fertilizers, DWC and soil

    Everyone has their comfort zone. For years it was rdwc for me. I'm glad I changed. My new job keeps me on the road sometime 3 days at a time. I never have to worry about a pump dying, topping off or ph swings again. I'm not trying to convert anyone by any means. If you have your shit dialed...
  3. DoctorDelta9

    My experience with Cree CXB3590. Fertilizers, DWC and soil

    I'm glad it's working for you. I made multiple attempts with a custom built RDWC. I've used the same system with killer results under HID. I will never go back. The organics are so easy. No ppm. No ph. I water once every 3 and fert once a week. No fuss no muss. Have you run a full cycle under...
  4. DoctorDelta9

    My experience with Cree CXB3590. Fertilizers, DWC and soil

    Awesome man! Exciting stuff! I was really worried for a while that these lights were a bad investment. So glad I was wrong. These are by far the best growing , most efficient, coolest running lights ever. As long as you are using organics.....! Viva 3590!!
  5. DoctorDelta9

    My experience with Cree CXB3590. Fertilizers, DWC and soil

    Hey guys I'm back after a bit of a hiatus. I feel a bit like I'm learning to grow all over again with these lights for the past year. Here is a link to my setup: https://www.rollitup.org/t/first-led-build-cxb3590.868236/ Inspired by supraSPL. I have been growing for 10+ years. Dwc mostly...
  6. DoctorDelta9

    First LED build CXB3590

    Hey guys, I've had some abrupt life changes since my last post. I won't go into details however I was forced to put my project on hold. It is now operational, however, to all of our disappointment, filled with strawberries green peppers and tomatoes. I will post some pictures later tonight...
  7. DoctorDelta9

    best/quietest air pump!

    Love the Alita AL-60. Super quiet. Runs a bit hot but i have a long extension hose pre-manifold so the heat dissipates. Would def. recommend. Great almost overpowering output using alita sintered air stones x8 in dwc.
  8. DoctorDelta9

    COB holders - the basics

    I used a felt pen to mark the centers of where i wanted my cobs, thenI took and ideal holder placed it centered on my marks and marked where the holes will be. After drilling and tapping entire sink I cleaned it with stiff brush and soap and water. Let it dry for 48 hours and cleaned the...
  9. DoctorDelta9

    COB holders - the basics

    Using ideal holders and prolimatech I had no problem. Pre drilled and tapped HS. Used a plastic card to apply very thin layer of paste onto chip and mounted with the rec. 5lbs of pressure. Like the op stated, The vacuum created by the paste and cob is very strong. I would use this method again...
  10. DoctorDelta9

    Building Prototype 300W CXB3590 Bar Need Comments Suggestions.

    For me, it was worth the extra $$ to have peace of mind that I wouldn't fry my $800 worth of cobs. 100$ shipping sounds high, you can pick economy shipping I think mine was 50$
  11. DoctorDelta9

    Building Prototype 300W CXB3590 Bar Need Comments Suggestions.

    For fan PS I ordered 12v 1a ( overkill I know, but the fans will only draw what they need) from eBay http://m.ebay.com/itm/371117456686?nav=SEARCH You can get custom shrouds here. Onlinemetals.com I love my noctuna fans. Good choice. As far as paste I used prolimatech pk-3. Artic silver gets...
  12. DoctorDelta9

    Heatsinks for DIY LED lamps

    How much?
  13. DoctorDelta9

    Heatsinks for DIY LED lamps

    Why is that?
  14. DoctorDelta9

    Heatsinks for DIY LED lamps

    Hlg-120h-1050c. Perfect
  15. DoctorDelta9

    Awesome heatsinking deal, will it work?

    I am weary of the alpine coolers, only because if your fan dies you cob is at risk. Has anyone checked temps with no fans on these?
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