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  1. S

    Thanks a lot SupraSPL for that detailed explanation. IF I could get 1gpw with this light design...

    Thanks a lot SupraSPL for that detailed explanation. IF I could get 1gpw with this light design I would run then all at 23w and buy a dozen more cobs for better efficiency. I will put a link to my DIY once the cobs arrive.
    • spidyshan
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  2. S

    And could you tell me how you derive the PPFD that would help me a lot in building my veg and...

    And could you tell me how you derive the PPFD that would help me a lot in building my veg and clone room and future expansion of flower room, hope it isn't too much trouble. Appreciate your help. Thank you
    • spidyshan
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  3. S

    Hey supra Ty for the suggestion, my driver is actually throwing 75v @ 700mA, it was a faulty...

    Hey supra Ty for the suggestion, my driver is actually throwing 75v @ 700mA, it was a faulty volt meter that got info wrong. I am gonna try them if they don't heat up too much I might use them longer.
    • spidyshan
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  4. S

    I went ahead and bought 6 CXB3590 72v CB bins with 80° lenses, will order drivers if you think...

    I went ahead and bought 6 CXB3590 72v CB bins with 80° lenses, will order drivers if you think my Chinese led driver I bought for 3 watt diodes, it puts out 75v and 570ma (label says 680ma) won't be efficient. In that case what driver should I use for my 4.5 sq.ft cabinets. Heat is a problem for...
  5. S

    One More Question SupraSPL, I have 6 Chinese LED drivers putting 70v and 560ma , Can I use it to...

    One More Question SupraSPL, I have 6 Chinese LED drivers putting 70v and 560ma , Can I use it to power six 3590's to get 6 39.2w cobs ? 3 in each 4.5sq.ft CAB. What will be my PPFD ? The efficiency Chart says i am @ about 50%, But I wanna Know the PPFD when I use 3cobs @39.2w in 4.5sq.ft ...
    • spidyshan
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  6. S

    Thank you Supra I will buy the COBs now. All I could find is the 80 CRI COBs, Digikey has 93...

    Thank you Supra I will buy the COBs now. All I could find is the 80 CRI COBs, Digikey has 93 CRI in 6 weeks, Do you think its worth the wait ?
    • spidyshan
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  7. S

    hey supra, I went through all journals that follow your system and found out you suggesting...

    hey supra, I went through all journals that follow your system and found out you suggesting that you would go 35w per sq.ft for some dense buds on December 2014,.So that makes two cobs @ 75w per 4.5sq.ft cab. if think i could better the efficiency with different setup please let me know...
  8. S

    hi Supra, I love your cob style, I decided to change my red blue 3w led to COB, my cab is...

    hi Supra, I love your cob style, I decided to change my red blue 3w led to COB, my cab is small two 4.5 sq.ft . I think i will go with the cxa3590 running @49.7% with a maxwell driver powering two cobs @ 72v, 1.05A. I couldn't decide how many cobs will I need Per 4.5 sq.ft Cabinet is there a...
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