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Stoked to see it in action... Go ez on the box wine when you're hooking everything up!

Probably i was just fuckin wit dude :oops:

The EB series are great but you can eek out a few more photons and free shipping with some samsung Mseries from Arrow...or what about the new samsung H series...if you buy 3 its almost like buying 4 eb strips but for 2/3 of 3/2 the price...

Seeing how Bob incorporated 12 different wavelengths on 12 different dimmers, I'd call it a completely different animal. Hook Bob's unit up to one of VegasWinners controllers and you have a really useful tool for determining whether or not Amare's claims of "perfect spectrum" are anything more...

Hmm 2600w vs 1600w...interested to see which side produces better smoke. If the 2600w of hps doesnt outyield the 1600w of cobs i would be shocked.

Dude takes his first crack at crafting an LED lamp and makes a great looking one out of quality components, with a tuneable spectrum, for someone else to use, and all you can think about is the cooling system. :confused::confused::confused::confused::confused::confused::confused::confused...

This argument has never made sense and still doesnt. The way youre interpreting the inverse square law is positing that somehow photons are vanishing into thin air. In a closed room everything reaches or is reflected back down onto the canopy. If the effect you are trying to achieve is even...

The ppfd example Abiqua gave is for a 12"x12" square, in your space (using those numbers) you would top out at 612ppfd using 6 strips. Dim that down to start (version A dims to 50% internally) and ramp up as needed.

In my understanding UV does very little to microbes unless the exposure is prolonged (not waving a wand over something or water flowing through a pipe). It is unlikely that waving a light over a plant is going to kill mold spores or mildew unless you can ensure every surface of every leaf is...

The housing of your driver is aluminum and inside it the green ground wire from the power cord is mounted to the housing. If there is a short, electricity will flow through your heatsink, through your frame, through the housing of the driver to the ground. If all of these parts are not...

In a word: absolutely. The 280mm strips are 7.7w @ 350ma. Which means at 350ma you would be vegging at ~40w sqft. You need maybe half of that and thats pushing it. Meanwell makes tons of different drivers. For your space you would be perfectly happy with 5-6 strips on an hlg-60h-c350a I...

There are, however two main advantages to the strips... Even better spread and your choice of color temps. For a veg lamp you may not need all those smds so close together on one pcb (or all 304 smds at all) in which case something like the samsung and bridgelux strips are a more attractive...

Occasionally, yes, even mighty NASA "gets it wrong". Personally I'm itching to see a side by side "enhanced spectrum" vs. "Standard spectrum" shootout and have been since Amare opened the "enhanced spectrum" can of worms. Conventional pot-board wisdom has always maintained "blue-heavy for veg...

Agreed, i never suggested running those chips in parralel on that driver, only the cc/cv driver he linked initially before he edited his post. As to the other bit, there have been a few threads addressing the voltage limitations of various cob holders re: high voltage strings, and your point...

Yes that is the drawback of the bjb holders and wiring in series. The constant voltage/ constant current driver you linked requires that you wire in parralel which does open you up to thermal runaway if one of the cobs draws a higher voltage than the others. Sorry thats all i can say for...

Yeah what i said before, amps dont stack in a series circuit so youre only pushing 1400ma through the holders, not 6.75a

With that driver you will be wiring in parralel not series. If you are running them each at 1350ma then that is well under the 6.75a limit. You are only planning for the amperage pushed through each cob because amperage doesnt stack in a parralel circuit like voltage does in a series circuit...

At this point in the game if i know the spd and density you can take your grow journal and shove it. No one cares if you're convinced.

3000k veg great although admittedly I've never veg with 5000k cobs just fluoros and cfls. Other than unwanted stretch (never suffered this) and decreased luminous efficacy (not decreased enough for me to care), are there other drawbacks to 3000k veg?

Hard to beat the quantum boards for ease of assembly and price. Were I to start again I'd build four 22" x 22" squares of 22" samsung hard strips.