Search results

  1. DoctorDelta9

    Heatsink USA discount code

    Glad I didn't order yet , very nice!! Thank you!
  2. DoctorDelta9

    LED PAR math

    @Greengenes707 Just read the thread you posted. Subbed to your YouTube page. Badass brother! Keep up the good work!
  3. DoctorDelta9

    LED PAR math

    I have to admit, its tough to wrap my mind around all of this. But I always welcome an argument backed by proven data. It expands our minds minds, and makes us think. I'll tell you this, I've done enough calculations to know that my girls are going to be very happy under the light I will...
  4. DoctorDelta9

    First LED build CXB3590

    Now I'm thinking 8.4 profile so the fan will.cover the entire sink.
  5. DoctorDelta9

    First LED build CXB3590

    Already went with Herbie's
  6. DoctorDelta9

    First LED build CXB3590

    Cool, I was shopping a bigger one to effectively cover the length of the sink. They are hard to find..lol
  7. DoctorDelta9

    First LED build CXB3590

    @REALSTYLES What type of fans are you using for you 10x24 heatsinks?
  8. DoctorDelta9

    COB efficiency Spreadsheets

    Courtesy of @alesh
  9. DoctorDelta9

    LED PAR math

    I love you guys! I'll keep you all posted on my build. Couldn't of done it with out all the help and quick responses!
  10. DoctorDelta9

    LED PAR math

    OK last stupid question! How do you guys type the sign for micro ?? Typing umol instead of correct denotation makes me feel like a dummy...
  11. DoctorDelta9

    LED PAR math

    Ok...so again please correct me if I'm wrong Total umol = 2016.73 25 ft2 = approx 2.322m2 2016.73 / 2.322 = 868.531 So I am within the sweet spot for both PAR an umol Sweeeet :clap:
  12. DoctorDelta9

    LED PAR math

    So its looking like 5x5 is going to be my sweet spot.
  13. DoctorDelta9

    LED PAR math

    is it more accurate to use umols/PPF?
  14. DoctorDelta9

    LED PAR math

    so original calcs are correct?
  15. DoctorDelta9

    LED PAR math

    Sigh...Im so confused...lol
  16. DoctorDelta9

    LED PAR math

    :wall: 75.4 Diss W per COB x12 = 906.48 Diss W total 45.59% efficiency so 906.48 x .4559 = 413.26 actual light output? 134315.4 / 413.26 = 325.01 total par?
  17. DoctorDelta9

    LED PAR math

    OK guys I was hoping I could get a check on my math here: College was like 25 years ago for me...lol CBX 3590 72V 3000k x12 1050mA Using @SupraSPL graph: See spreadsheet post below. https://www.rollitup.org/t/cob-efficiency-spreadsheets.865238/ Assuming 325 LER 11192.95 LM/COB x 12 =...
  18. DoctorDelta9

    COB efficiency Spreadsheets

    Awesome thread! Finally all the spreadsheets in one place. I'm trying to calculate my par/ft2. Trying to find the LER for cxb3590 72v 3000k CB. I will be running 3000k x12 Over a 6x6 area
  19. DoctorDelta9

    1800w perpetual 9'×6' -hydro questions?

    Lots of questions. Your watering schedule will vary depending on a lot of factors. Room temp Size and stage of plants Are the biggest factors. The babies might only need one per day, where as the big girls might need several. Also plan on separate res for momma, seeing as you will be upping...
  20. DoctorDelta9

    First LED build CXB3590

    Love that story! Wish I could get my poor old arthritic mom to smoke, she's just to damn stubborn
Top