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  1. Actionbone

    What to add to 8 cxb 3590 cobs?

    My point is not the spectrum Im going to use 3500k I just want to add some monos to use all the power of the driver and get max intensity for my tent, 8 cxb3590 is like 183w and 870-880 ppfd, so the question is 660 monos or 3500k monos and which ones
  2. Actionbone

    What to add to 8 cxb 3590 cobs?

    I think I have almost 17w and 28v to power something with that driver I'm looking for a little more punch! I don't want to add another driver.
  3. Actionbone

    What to add to 8 cxb 3590 cobs?

    Hello guys I'm planning to built a new lamp for a 80x80cm tent, thinking in 8 cxb3590 36v 3500k at 700ma with 185h 700b driver so I want to add some 660 reds or maybe some 3000-4000k monos. I want to up the intensity a bit to around 900-950 ppfd using the same driver! Thx in advice guys!
  4. Actionbone

    LED COB bar project

    awesome job @SupraSPL you must open a account on PayPal so we can donate you some cash!! Your hard work teaching us every day is invaluable!
  5. Actionbone

    LED COB bar project

    Efficiency improve very fast! This days! Hps and 3v chips are gone!
  6. Actionbone

    LED COB bar project

    So this light is for vegging cause this spreesheet is for cxa 3590 5000k
  7. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    5x3 is Near the same area than 4x4 so like I said something around 1400 ppfd but if I was you I will make a 5x4 area for the ideal 1050-1100 ppfd, sounds ideal for me!
  8. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    I calculated what you bought the 16 cxb 780.8 dissipated ,if you tell me what's the area in fleets or m2 I can calculate what you need to cover it well.
  9. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    Just read REALSTYLES thread and you can see his design for the same setup. Btw You will get something like 870 ppfd in a 5x5 tent
  10. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    Your ppfd for the 4x4 is something like 1350-1400 not sure if plants can use it all with out co2 enrichment and high temps. So you have very high intensity! And be calm every driver can drive 4 cobs so you buy well.
  11. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    Vescovi you must learn to read... We are telling you same thinks every time, I said you like 2-3 times you going to have 48.8w per cob so if you have 16 you got 780.8w and you have to add driver loss + fans. And I'm lost about your grow area you said 4,5x5 then 4x4....
  12. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    Well maybe now you have cxa/cxb and different colors!! Btw your last grow is ended?
  13. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    REALSTYLES use cxb3590 3500k and he is getting 418w per light I think
  14. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    If we said you can run 12 cobs with 3 drivers, of course you can run 4 each driver... But remember at 700ma you have to run 72v version and you get 48.8w per cob.
  15. Actionbone

    DiY LED - Cree CXA3070

    You are right, most of us buy the 72v cxb version, cause it was on the market first but if you drive the 36v version at 1.4 you get 48.8w per cob at 51.7% efficiency same as 72v at 700ma!
  16. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    I didn't have, but seems to improve the light spread, if you can go for it, 80/90 degrees seems to be perfect
  17. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    3000+4000k will work well but if you can get 3500k instead
  18. Actionbone

    Replacing my 600w hps with CBX3590 Cobs. Need help!

    If you can do 3500k I don't see why you want to mix, better color distribution if you go only 3500k
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