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  1. GrowLightResearch

    Coming soon..Cree CMT drop in COBS for all you favourite packages

    CoBs are history. Use strips. Samsung F-Series or Bridgelux EB Gen2. CoBs are more expensive per lumen than strips. CoBs have horrific uniformity compared to strips. Cobs require expensive heatsinks where strips do not.
  2. GrowLightResearch

    I could realy use advice on led plz

    CoBs are history. Use strips. Samsung F-Series or Bridgelux EB Gen2. CoBs are more expensive per lumen than strips. CoBs have horrific uniformity compared to strips. Cobs require expensive heatsinks where strips do not.
  3. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    Just finished putting this together. Seven BXEB-L0560Z-30E2000-C-B3 Powered in series by one HLG-240H-C1400B With the HLG at max: Wall watts: 220 watts (probably more than 1400mA) Temperature: 59° C @ Tc2 The Mean Well driver is much hotter than the strips. I can touch the strips for a few...
  4. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    I said a grow light. The light source in my example is a single little very bright grow light. Not a huge fixture like you assume. You need to stop making so many assumptions. You are always wrong. More assumptions. Sane? You're not, you are psychotic. So what would you know about sane...
  5. GrowLightResearch

    Any one using ERP led drivers

    Do you know what current amplitude means? I think not. Google "calculate current amplitude" Current amplitude can be changed by changing the duty cycle. While peak amplitude remains the same.
  6. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    You do not read very well, I said I do not use reflective walls. And no it does not stop spreading. Would you please stop posting stuff no one understands?
  7. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    They are the same to the leaves that are located at the level where 500 µMoles of PPFD was measured. Light spreads out as it travels. As it spreads out the light covers a greater area but there are less photons per square area. Still the same number of photons but spread out more. As...
  8. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    You are just to much. Negated? As in light no longer follows the laws of physics? So you have your own little world with a dead zone where the laws of physics are suspended? Okay. Carry on. I have nothing to contribute to that.
  9. GrowLightResearch

    Any one using ERP led drivers

    No matter how many times you say it does not make it true. The output current is ONLY changed by the duty cycle of the switching signal. The duty cycle can be alternated between 0% and 100%, but it's still the duty of the switching FET that changes.
  10. GrowLightResearch

    Any one using ERP led drivers

    Like in AC voltage there is a peak to peak and an RMS value. In a driver the peak amplitude remains the same and the average or effective current changes based on the width of the current pluses. In an HLG the pulses come at at rate of 100 KHz. The width of the pulse has a duty cycle of...
  11. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    No he makes up his "facts" and can never produce a scintilla of evidence from the "mountains of evidence" he claims exists to back his ignorance.
  12. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    It was Eisenstein and Planck that says ISL works. I only verified it works when my measured values match my calculated values. If there is any ridiculousness to ISL it is you saying reflection cancels ISL. If there is overlap you simply sum the values from the overlap. I suspect you...
  13. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    You can treat each point source (every LED in the fixture) and sum their individual irradiances to a single value. Rather than using the height of the fixture, you calculate the distance and angle from the measurement point to each and every LED. Use ISL on each individual distance and...
  14. GrowLightResearch

    Any one using ERP led drivers

    Without PWM how is the current reduced? Current is regulated 100% by PWM whether or not the driver has a dimmer.
  15. GrowLightResearch

    Any one using ERP led drivers

    It's not what's behind the buck circuit in the Mean Well, it's what's in front of it. The buck driver is the last stage, the output. You did not explain jack shit. I'm an electrical engineer, you are not, and you think you can explain how a buck driver works? You are delusional. You must...
  16. GrowLightResearch

    Any one using ERP led drivers

    So why were the arrows from the dim wires going to the PWM circuit? Why is there a PWM circuit? WTF do the links you posted have to do with the topic? Are you changing the topic?
  17. GrowLightResearch

    LED Panel F-Series GEN 3 or Bridgelux EB Series Gen 2

    There is very little difference between the F-Series and BXEB Gen2 in price per lumen or efficacy (lm/W) It does not matter much which you use. I prefer the BXEB because they run cooler than the Samsung. I bought both and tested.
  18. GrowLightResearch

    Any one using ERP led drivers

    Constant Current Regulation in a switching driver (Mean Well is a switcher) the current is regulated by changing the duty cycle of the output. The amplitude remains the same and the current is averaged. Only an inefficient linear driver adjusts the amplitude. Follow the highlighted arrows...
  19. GrowLightResearch

    Any one using ERP led drivers

    Difficult to take you seriously because you do not get it. Does the Mean Well driver not have a Buck controller chip? The green waveform is labeled ILED Because This Came from this: Where what is being measured is highlighted in yellow. The current through the inductor and LEDs. All...
  20. GrowLightResearch

    Help with cob

    Which also means you need a heatsink to run them at the current of a single row strip that does not need a heatsink. Or you can run them with less current so they don't get too hot. But then you have the output of a single row strip that you paid twice as much for.
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