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    What kind of light mj 'likes ' ? Decoded from it's reflectance ....

    Stardustsailor, thanks for putting that all together. Two questions: Page 1 Figure 2AB: More of an academic question. Can you explain the constant slope of the curve between 750 and 1000 nm? Looks strange as it occurs b o t h in the reflectance and transmittance curves and is independent from...
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    DiY LEDs - How to Power Them

    :joint: Thx for the confirmation Regarding the 12V 2A PSU, you linked to the 12V 1A. If I remember right, you somewhere mentioned that the voltage range from 12V 2A was from 9. to 13something V. Is it correct that you have tested both of them? Just asking because I ordered the 12V 2A for my...
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    DiY LED - Cree CXA3070

    Thanks, hope its okay to ask noob questions in your thread and validate what I learned? Shipping is expected in around 3 weeks, says their website. I would prefer getting two 2700 from but cannot PM him!? Better spectrum I was assuming, but in what way more "efficient"? I would have assumed...
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    DiY LED - Cree CXA3070

    Gentleman, after spending 25+ hours reading on LEDs in this forum I have some questions in choosing an appropriate LED setup. But first let me thank you for your time and efforts in researching and providing all the informations. Specs and setup so far: Starting my first indoor grow with one...
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