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Just trying to make sure I am putting the right amount of light in my new grow space. It is my understanding that adding Co2 allows for increased light levels. What is the max ppf/ppfd you should be running with and without Co2? PPFD is the better figure to use right?

There is so much information out there on LED grow lights. It is very difficult to decipher fact from fiction. It seems even experts can't agree on many subjects. Whether your talking about the mcree curve, chlorophyll absorption, CRI, lumens, PAR, UVB. Nothing seems certain and everyone...

One of the benefits of growing with LEDs is being able to fine tune your spectrum. So that leads me to the question, what is the best spectrum for each stage of plant growth? Obviously there will be differing opinions but I was hoping to see what all of you LED connoisseurs had to say. So what...

Advanced LED Lights Amare Technologies Apache Tech Area 51 Artificial Sun Specialty BIOS Lighting Black Diamond - URL?? Black Dog LED Budmaster LED California Lightworks Cirrus LED Systems Ecosunlight Eonstar Flextronics - Do they make growlights? Flip Chip Opto/Starlite LED Fluence G8LED/Dorm...

Does anyone have any info on UVB in LEDs? I went to a cannabis show in Oakland recently and there was a new LED company there that said they had UVB in their lights. Just curious if anyone has used or tried UVB in their LEDs. Also, what is the difference between MCOB and COB? Sorry for...

Kind LED posted this comparison of all the major LED lights. I've been wanting to get my hands on a K5 after my results with the K3. What do you guys think? I would guess the results are legit, because anyone could reproduce this test.

Starting a new grow. I'm doing a 1 plant SCROG and an 8 plant mini SOG in my 3x2 cabinets. Using DWC with LED and TechnaFlora nutes. Strain is Mazar. I will be transferring all but one plant into one cabinet tomorrow. Will post more soon. Just topped them after these pictures.

Greetings! I am a seasoned grower who has not been active on forums for some time. I used to post on OverGrow and PlanetGanja under a different name(which I will not mention) back when they still existed. I moved recently and am not able to run a full sized grow in my current location, so I...