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  1. Growmau5

    4x8' grow tent, need some LED DIY guidance

    Yessir, you will be above & beyond. If ever in doubt, check out this online voltage calculator if you really want to get down to some reasonably accurate estimates.
  2. Growmau5

    4x8' grow tent, need some LED DIY guidance

    Hey @everest_dope thanks so much for checking out my videos. I don't post much here, but I happened to see your thread. You have to be a little careful around here sometimes, there are a few folks that TalkAir with little understanding of what they recommend. If you use 18AWG wire on...
  3. Growmau5

    Decision round ,led system , 3×3

    looking good Max, simple, effective, no frame needed. save that loot homie.
  4. Growmau5

    Rapid LED

    From the first time I met Mike (owner of rapidled) , I got a great vibe from him. We drove around the bay area and chatted about Reef tank leds, grow lights, etc. I could tell he was NOT a money hungry profiteer type. Obviously he is business to survive and make money, but from all of our...
  5. Growmau5

    CMH / QB288 / QB120 / SB240 / VERO 29C comparison...

    which ever is in-stock? oololoo. i like the 288. it has been the most flexible for me personally, offering a wide range of driver combos. the 304 is really nice for the person who has a set budget today, but wants to invest in efficiency and spread later down the line. a person could start...
  6. Growmau5

    convince me led is worth it.

    GAVITA > everything. When the sun dies, Ima go in my rocketship and plug in like 10 DEs out in space.
  7. Growmau5

    CMH / QB288 / QB120 / SB240 / VERO 29C comparison...

    we are saying the same thing. But still the question persists at least 10x per day: Which is better, the xxxboard or the xxxxxboard? And it's only going to get worse for the newer diy peeps. I cant swing my dong without hitting 2 new board makers a month.
  8. Growmau5

    DIY with Quantum Boards

    Slates cut like butter with an 80T harbor freight 10" table saw blade & some WD40. I cut alum extrusions, 80/20, alum tube on the table saw all the time.
  9. Growmau5

    ChilLED grow light

    I'm not a pcb design wizard, but I'm learning a lot about the copper weight used on boards, trace width for thermal & electrical performance etc. let's put it this way, there are ways to cut costs in metal core pcb manufacturing & there are ways to eek out some performance gains. I guess it...
  10. Growmau5

    CMH / QB288 / QB120 / SB240 / VERO 29C comparison...

    Increasing Gross number of chips can result in two possible outcomes: A) a higher wattage board B) a more efficient board. If you fix the wattage of two 50v boards to say 100w, then obviously the board with more leds will be more efficient. But unfortunately, the marketplace doesn't have fixed...
  11. Growmau5

    CMH / QB288 / QB120 / SB240 / VERO 29C comparison...

    I guess what I'm saying is; there is a lot more to pcb design than : how many diodes, and how many watts. Efficiency has always come from the same places. -drive current -driver efficiency -thermal management Some of the newer start up board makers are claiming high wattage boards, no...
  12. Growmau5

    CMH / QB288 / QB120 / SB240 / VERO 29C comparison...

    When you guys are shopping around for boards from who ever. Keep this in mind: The Samsung lm561c led is a 2.8 volt chip (nominal) 200ma max current http://www.samsung.com/global/business/business-images/led/file/product/products/201607/Data_Sheet_LM561C_Rev.7.0.pdf If the board you are...
  13. Growmau5

    ChilLED grow light

    we test the samsungs alone at 40,50,60,70,80,90,100,110,120 milliamps per chip. To achieve the numbers that some people are reporting, a company would have to run each chip at 80ma. but some companies are reporting the efficacy that is achievable at 80ma, but actually running their chips at 116ma.
  14. Growmau5

    ChilLED grow light

    We are making some tweaks and have been in and out of the sphere lab all month. The availability of better voltage bin reds, blues and samsungs are looking very promising. Coupled with the AR coated optics, we believe that we can reproduce and prove the most efficient system level numbers in...
  15. Growmau5

    CMH / QB288 / QB120 / SB240 / VERO 29C comparison...

    Why are none of the board threads talking about chip level stats? If one board has 12 samsungs in parallel and another has 18... and you run them at the same current, which is more efficient....
  16. Growmau5

    ChilLED grow light

    I sincerely appreciate that man. And I appreciate all of the wonderful people that still remain in these pages.
  17. Growmau5

    ChilLED grow light

    ahhh, now I remember the genesis of all this hate. Hey man, sincerely I apologize for being mean to you back in May 2016. Ill try to be nicer and more respectful next time, if possible.
  18. Growmau5

    ChilLED grow light

    Ouch. My plastic head is reinforced with twill weave carbon fiber btw.
  19. Growmau5

    Water cooled COB Build/pic heavy

    @Godfather420 greetings. I try my best to get back with as many people as possible. Sorry if you slipped thru the cracks. How can I help you? cheers
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