Rp750 led

I know a guy that has one of these laying around. Its a multi voltage and we hooked it to 120 to check operation... crazy bright!

5000k...20890 lumins...230 watt

http://www.heapg.com/products/a200/

Any opinions as to whether this would be a sufficient light source?

sufficient ..........yes.........veg in a three by three and/or flower in a three by two area should do well

remote phosphors.....sounds pricey/any pics?

Cool! There's an A-100, too, which might be cheaper overall (not likely). And here's another one:
http://www.prgtrucolor.com/

My guess is all three fixtures are waaay too expensive for my blood, I think I'm better off building my own RP spotlight. But if your friend's got one, hell yea, try it out, and I'm sure I'm not alone in demanding a journal plus tons of bud pron. I'd be all over that one.

PSUAGRO. said:

sufficient ..........yes.........veg in a three by three and/or flower in a three by two area should do well

remote phosphors.....sounds pricey/any pics?

Click to expand...

yea they're about a grand new... I can get this one pretty much for nothing. Think it'd do 4 in a scrog?

Bumping Spheda said:

Cool! There's an A-100, too, which might be cheaper overall (not likely). And here's another one:
http://www.prgtrucolor.com/

My guess is all three fixtures are waaay too expensive for my blood, I think I'm better off building my own RP spotlight. But if your friend's got one, hell yea, try it out, and I'm sure I'm not alone in demanding a journal plus tons of bud pron. I'd be all over that one.

Click to expand...

I might just give it a shot... thanks for the vote... Ive never grown anything in my life lol

Hell yeah, I'll be waiting... impatiently, I might add.

I downloaded the spec sheet of the A-200 and don't see any info on their phosphor blend. You got -or know where to get- any technical info on these? Looking for spectral peaks in the Blue/Red ranges.

Some info here... not sure if it helps..

http://www.intematix.com/index.php?page=led-phosphors

I plugged this one in for an hour and Im amazed that its only just warm.

RP blends are usually proprietary technology and most, if not all companies, will be reluctant to even tell you what phosphors they use, never-mind what blend.

I see that the light I am talking about has a CRI of 70. Can you explain to me what that means in terms of growing? Or does it not really apply?

To me a high CRI indicates an LEDs ability to maintain proper spectrum in hot or extreme conditions, a testament to the LEDs quality, i.e. signage LEDs have low CRIs because it doesn't matter what their ablity to reproduce color is, just how many lumens they can pump out. Plus it usually indicates the spectral ability of white LEDs. But that's just me and PetFlora or someone will be along in a minute to talk some Astir bullshit .

CRI is one of the old outdated ways of trying to quantify light that LEDs don't really follow, at least in the books I've read, so don't put too much faith in CRI as a lights ability to grow. Sooner or later it will be replaced with another value.

Thanks. Just trying to decide if I want to chance wasting beans... would like to try a 4 plant scrog

CRI is sort of bullshit. It's a way of measuring how accurately a light source can render different colors relative to a true light source (such as the Sun). There's only a handful of colors that are tested, however, which makes it very easy for LED's using phosphor to match those colors and score very well despite having relatively poor color rendering.

In terms of growing... I don't think it matters at all. It's even more just a bunch of bs. We grow with Pink light, lol. We don't fuckin' care what our plants, or anything else, looks like under our light, we care about results. That being said, many of the 2700k phosphor blends that are over 90CRI have Green phosphor in them and a primary peak deeper into the Red spectrum. So while I'd say a higher CRI isn't directly indicative of a more capable light for growing, it at least implies that I might want to look further into the spectral distributions. I wonder what an HPS bulb would score in CRI, and yet we know it works...