More SPAM from Prawn (Psst - buy my LEDs)

Grow room design, HID, fluoro, reflectors, ventilation, ballasts and wiring.
User avatar
Prawn Connery
MPG Founder
Karma Bhudda
Karma Bhudda
Has bestowed Karma : 417 times
Received Karma : 511 times
Posts: 2529
Joined: Wed May 20, 2009 9:10 pm

More SPAM from Prawn (Psst - buy my LEDs)

Post by Prawn Connery »

bentech wrote:what do you see as the future of development in this area

driving cost down obviously
BUT the ability to build arrays that are 'tune'able is amazing

it seriously seem to me the only thing lacking now is a mike the plant can step up to and say what it would like more precisely...
Tuneable is good, but it adds to complexity and costs. That's why these boards were designed, as they combine a spectrum closely matched to the McCreee curve but with added UVA and far red, all driven by one driver on the same channel. Just plug and play - couldn't be easier.

Once we have a few more boards and run a couple of flowering cycles, we'll know whether they truly live up to expectations, but the clones love it - ans these are dedicated flowering boards, not veg boards.
Licensed to Krill

User avatar
Prawn Connery
MPG Founder
Karma Bhudda
Karma Bhudda
Has bestowed Karma : 417 times
Received Karma : 511 times
Posts: 2529
Joined: Wed May 20, 2009 9:10 pm

More SPAM from Prawn (Psst - buy my LEDs)

Post by Prawn Connery »

So the lights are out and I've sold a bunch of them and they work really well. If anyone's intersted, I'm documenting everything over at RIU: https://www.rollitup.org/t/high-lights- ... ia.988805/" onclick="window.open(this.href);return false;

Apologies for the off-site link, but it's easier to keep everything in one place and RIU has a pretty big LED community for anyone who's interested in this technology.

Here are some of my Mental Floss under the new LEDs. These panels are running at about 95W each, or about 190W per pair. These are the plants leftover from a perpetual grow, so not a full tent. I just like the photo :)
IMG_0967.JPG
With my staggered, perpetual grows, and fondness 12+ week sativas, I've been pulling over 2gpw out of a 4x2 tent with less than 400W of LED on a fairly regular basis now.

With eight week strains, I'm pulling an average 24oz per grow, so 1.5-1.7gpw.

There's some pretty funky stuff going on with LEDs right now.
Licensed to Krill

User avatar
Jesús Malverde
Site Moderator
Karma Bhudda
Karma Bhudda
Custom Title: Munchy Sock since OG lol
Has bestowed Karma : 70 times
Received Karma : 131 times
Posts: 2469
Joined: Fri May 27, 2011 6:59 pm

More SPAM from Prawn (Psst - buy my LEDs)

Post by Jesús Malverde »

2gpw is an interesting number.
One for the rook

One for the crow

One to rot

and one to grow

User avatar
Intrinsic
Advanced Grower
Karma Hippie
Karma Hippie
Has bestowed Karma : 1751 times
Received Karma : 1537 times
Posts: 7656
Joined: Thu May 21, 2009 10:51 am

More SPAM from Prawn (Psst - buy my LEDs)

Post by Intrinsic »

Jes too cool, Thanks man.

User avatar
Prawn Connery
MPG Founder
Karma Bhudda
Karma Bhudda
Has bestowed Karma : 417 times
Received Karma : 511 times
Posts: 2529
Joined: Wed May 20, 2009 9:10 pm

More SPAM from Prawn (Psst - buy my LEDs)

Post by Prawn Connery »

We had these goniometer tested, which covers spectrum, light footprint but most importantly efficiency (power in, light out). They came back with 2.5 umol/j which is outstanding for a CRI95 board.

English translation: The best HPS lamps put out 1.7 umol/j - that is, the number of Photosynthetically Active Radiation (PAR) photons per joule of energy used. My panels are 50% more efficient.

It's why we can get the same yields from 400W of LED as 600W of HPS (400 x 2.5 = 1000; 600 x 1.7 = 1020). It's also a godsend in places like Australia where it's fucking hot and many growers shut down over summer or spend shit-loads on airconditioning.

Plus, LED spreads the light and heat over a wider area, instead of being concentrated in a heating element the size of a pencil (HPS element).

Here's my sexy goniometer report:
Screen Shot 2019-05-07 at 15.30.13.png
HIGH LIGHTS UVA 2700K 1.5AMP HORTI .pdf
(153.44 KiB) Downloaded 48 times
Licensed to Krill

bentech
MPG Ambassador
Karma Hippie
Karma Hippie
Custom Title: eye the witch Melancholy
Location: socal
Has bestowed Karma : 33 times
Received Karma : 28 times
Posts: 17529
Joined: Mon Jun 06, 2011 1:38 pm

More SPAM from Prawn (Psst - buy my LEDs)

Post by bentech »

im super curious about intensite fade
led's versus traditional

so way back I bought a couple different reflectors
stuck a 600 under them
and had a sensor on the floor two feets down
and enough floor to move these reflectors back and forth
right left up down
to measure

heh

the fucking things I do...

so I guess curious
I think led's are more spot that flood

at 24 inches away from your panels
what the canopy footprint getting what it needs?
"we must strive to become good ancestors" nader
https://www.myplanetganja.com/viewforum.php?f=48
FUCK jimmydorecomedy.com

User avatar
Prawn Connery
MPG Founder
Karma Bhudda
Karma Bhudda
Has bestowed Karma : 417 times
Received Karma : 511 times
Posts: 2529
Joined: Wed May 20, 2009 9:10 pm

More SPAM from Prawn (Psst - buy my LEDs)

Post by Prawn Connery »

Yes. There are many ways to skin a cat, and many ways to hang a LED board, but there is a guy in RIU who has hung eight of my boards in a 4x4 and is getting 1000 PPFD at 24" with 670W and 18" with 600W.

PAR mapping halfway down this page: https://www.rollitup.org/t/high-lights- ... 805/page-2" onclick="window.open(this.href);return false;
Licensed to Krill

User avatar
dill786
Karma Shaman
Karma Shaman
Custom Title: memento mori
Has bestowed Karma : 955 times
Received Karma : 745 times
Posts: 1562
Joined: Sat Oct 14, 2017 1:45 am

More SPAM from Prawn (Psst - buy my LEDs)

Post by dill786 »

how much do they cost and were can i order it?
Kuchisabishii

User avatar
Prawn Connery
MPG Founder
Karma Bhudda
Karma Bhudda
Has bestowed Karma : 417 times
Received Karma : 511 times
Posts: 2529
Joined: Wed May 20, 2009 9:10 pm

More SPAM from Prawn (Psst - buy my LEDs)

Post by Prawn Connery »

Right now you can only get them from me, and I'm in Oz. They're selling for A$180 per board ($170 for four or more), or $220 with a heatsink sink or $420 for two boards with two matching heatsinks like the tent above. Two boards with sinks is 450W potential to replace a 600W HPS - though we've found 350-400W will do it, depending on how high you hang them and whether they are in an enclosed room/tent or open area.

You still need to buy a driver - something like this https://www.arrow.com/en/products/hlg-3 ... nterprises" onclick="window.open(this.href);return false; - and you need to wire them up, but that's the easy part.

I've sent eight out to the US, four to the UK and four to Germany so far. The rest have been sold in Oz.
Licensed to Krill

User avatar
dill786
Karma Shaman
Karma Shaman
Custom Title: memento mori
Has bestowed Karma : 955 times
Received Karma : 745 times
Posts: 1562
Joined: Sat Oct 14, 2017 1:45 am

More SPAM from Prawn (Psst - buy my LEDs)

Post by dill786 »

can i be your official distributor in Uk ???
Kuchisabishii

Post Reply