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Quick driver question: I'm making some stripes of supplemental lighting. Making 4 heat sink strips per diode class, so 8 total What would be the ideal driver(s) to power 4x separate series strips of 7x Cree Far red XPE-730nm (XPEFAR-L1-R250-00701) 250mw diodes (28 diodes total)? (diodes...

Seconded! Also, are these new heat sinks going to replace the current ones in the MOU5 kits? (most of the black anodized sinks on the cutter site say "out of stock" sooo.....)

Good call! Thx! Looks like 660nm would be a good wavelength to supplement

Hmm..I wonder why Cree didn't put out a chart for the 3500K? I basically extrapolate the spectral curve by averaging the 3000K and the 4000K to get a ballpark. I'm pretty much just trying to decide which peaks I might want to supplement my 3500K's with when I get some single diodes. Definitely...

Is there a spectral distribution chart for the Cree CXB3590 3500K? All I can find is this one which has 2 3000K (80CRI and 90CRI) and then jumps to 4000K: http://i.imgur.com/9cBmskX.jpg

I'd like to know that too. My next project will be to make a 730nm far-red and 660nm supplement bar (like a Powerbar but for plants). I was able to do the mau5 kit no problem with growmau5's videos and help from here, but this is a little bit more advanced; like taking the next step. Reading...

What kind of lighting do you use over your clones? Could that be the difference maker between 2 week vs 4 day rooting?

I think I may have to give it another whirl...this time not putting the stems into the water! I also have an idea for an aero cloner with a much finer mist than what you get with the standard spray nozzles of an EZ-Clone. I bought the nozzles and pump, just never figured a satisfactory way to...

DAMN! 4 days?!?! I've never had roots that quick! Are you using anything in your cloner water? Clonex? Nutes? Have you experimented with different mist droplet sizes? ....like you said with the bubble cloner, it's essentially an aero cloner if the stem isn't submerged in the water; it's the...

Should I put the plastic diffusers over the COBs? Are they mainly for moisture protection? I'd hate to cut down on PPFD. Anything wrong with running bare COBs?

Yeah where DID you get that much? You stumbled on a hidden treasure! I love the aero-cloner, never done cubes but that's because I go media-less from start to finish...no hydroton, no soil, no perlite, no nothing; Just pure roots suspended by net cups and a neoprene disc. Aero cloners are a bit...

Yes I believe that is what it's called. I think at the time I wrote this post I didn't know that haha! :) My experiment did not succeed. The clones never rooted and I got bacterial and fungal blooms each time. I think I did it a total of 3x in slightly different ways using hydrogen peroxide in...

YES!! exactly...also Glutamic Acid in addition to Glycine. I just watched the lecture again haha. After watching a Harley Smith lecture I just want to feed my plants everything! He's like the Bob Ross of horticulture.

Nice, my popcorn is buttered! I'm doing low pressure aero, are you in soil?

Very interesting pinner, I remember Hearley Smith talking about that in one of his lectures (it's on YouTube). I can't remember what element it was, but there was something that was a limiting factor for calcium uptake and if you provide it to the plant, it allows the plant to absorb 10x more...

Is there a rule of thumb as far as the gauge of wire and the distance between COBs? Like for instance, if you are going to use more than 10 feet of wire from one COB to the next, use 16-awg instead of 18-awg? Or is 18-awg sufficient for anything but absurdly comical distances like 20 feet? I...

It makes me wonder how much phosphorus our plants really need. I wonder why all bloom boosters are basically just phosphates in one form or another...seemingly combined with ammonium in many cases? Do vegetables and other plants require significantly more phosphorus than cannabis? Is that why...

Would this work? It's only $0.08 per foot which is nice I believe it says it's rated for 600v AC https://www.platt.com/platt-electric-supply/Full-Voltage-Fixture-Wire-TFN-Type-Solid/Multiple/18TFNSOLBLAX500/product.aspx?zpid=187449

Thanks very much for all you're help Mark! "Most things in here, don't react well to bullets!" I will post pics when I get everything assembled. I'm actually doing it a little bit unorthodox and not mounting all heatsinks to a single frame but keeping them separate and hanging them individually...

I don't know if MisterBlah has reverse engineered Advanced Nutrients line yet but from all the threads I've read on it, people seem to conclude that after adding up the NPK of all the 10 million products that one is supposed to use during a grow, their Bloom products and additives result in a...