uk builders??

Blue brother

Blue brother

Well-Known Member
all right guys, I've been away for a while but now I'm back, I'm currently running 3 600w hps in cooltubes over a 2mx1m area, this gets me around 45 Oz. I wanna cut my power usage and improve quality but not sacrifice too much yield. I know my current set up has a lot of light, but I've seen improvements in yield and density all the way up to 100w per square foot.

what led build would people recommend that would give me good results in this space?

are there any uk builders i could get to build it for me.

i don't have too much experience with the tech side of led lights but i don't wanna just buy one of those mass produced panels with hundreds of pink and blue tiny diodes. I would like to use something that puts off a more white spectrum, and also I'm led to believe the bigger 3w diodes are the way to go.

someone school me, don't fool me, and please don't just come and slate hps or other hids I've used them all and they've been good to me, Il probably always use hid in some grow or another.

thanks guys
 
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pedrovski

Well-Known Member
I'm in the uk and just built myself a 300w panel using clu48-1216 3500k 90 cri leds at around a tenner each bought from Kingbright on alibaba. These are being run at 50w each and are far better than the 3w epistar leds and would not recommend the 3w diodes as they are pretty inefficient.

I have ended up just making a frame of extruded aluminium with plainly cooled Heatsinks which seems like the most effective way of mounting these leds.
 
Blue brother

Blue brother

Well-Known Member
any pics?, sorry id like to say those figures sound sexy and I'm sure they are but its just French to me lol. So a 50w diode? That sounds great, i would like each diode to be as big as possible. How muc did ur build cost? What size area is it best suited for? Thanks a bunch mate :D
 
K

key4

Well-Known Member
Blue brother

Blue brother

Well-Known Member
key4 said:
Quantum boards are good if you cant diy its only a couple wires and a few screws no need to build a frame or anything . They ship to the uk too mine took 3 weeks from ordering.

My new space is about that size im going for 8 quantum boards or 8 solskins, i haven't decided yet. but running around 1000w total as thats my limit.

https://www.rollitup.org/t/diy-with-quantum-boards.927159/
https://www.rollitup.org/t/sol-skin-let-the-journey-begin.943891/
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i like how simple that seems. I would however like something with more intensity, i understand the inverse square law, and would like to keep the light sources as powerful as possible and have as few of them as possible. I've been growing for a long time with hid. I'd always rather have high intensity if i could feasibly do so.

1000w would also be my limit for that space or i might as well get a couple 630w cdm fixtures in there.

how much money is it gonna cost you to light that space and do you think you'd benefit from more light? Or is that pretty much the maximum ammount of light your plants could take. I've always just maxed the light out, working like this has always seen me have the heaviest most dense crops. I don't mind paying more if Il gain more in the long run
 
lukio

lukio

Well-Known Member
sup dude

750w of Quantum Board will match 1000w hps for intensity.

im also in the uk btw. Speedy delivery and great service. Like Key4 said, the sol panels are also worth checking out imo
 
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Blue brother

Blue brother

Well-Known Member
lukio said:
sup dude

750w of Quantum Board will match 1000w hps for intensity.

im also in the uk btw. Speedy delivery and great service. Like Key4 said, the sol panels are also worth checking out imo
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i started reading the quantum thread and by god that guy got slated fast. I don't want to get into an argument here about lumens and umol but i just can't believe that 750w of quantum board would match a 1000w hps with intensity, better spectrum yes, better coverage yes but, your claim goes against the inverse square law of physics. I think if I'm gonna do led its gonna be with big diodes. The bigger the better? Not sure. And I'm not slating those boards, they'd probably do well over a very well trained flat scrog but i cannot see them doing much at 1m from light source, at least not what I'm used to. Sorry to disgard ur info, i really am, I'm not trying to be a dick im just trying to learn about led and i don't think these boards are where my money will go.
 
lukio

lukio

Well-Known Member
Blue brother said:
i started reading the quantum thread and by god that guy got slated fast. I don't want to get into an argument here about lumens and umol but i just can't believe that 750w of quantum board would match a 1000w hps with intensity, better spectrum yes, better coverage yes but, your claim goes against the inverse square law of physics. I think if I'm gonna do led its gonna be with big diodes. The bigger the better? Not sure. And I'm not slating those boards, they'd probably do well over a very well trained flat scrog but i cannot see them doing much at 1m from light source, at least not what I'm used to. Sorry to disgard ur info, i really am, I'm not trying to be a dick im just trying to learn about led and i don't think these boards are where my money will go.
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all good man! is sphere test data good enough to sway your opinion? ive grown with both and ive put my hps in the bin (:

im cropping tonight and some of the colas are arm size...
 
K

key4

Well-Known Member
If you get 42 oz now off 1800w hps.you only need 23oz off 1000w of led (i think) to match your current yield and most folk can pull 36oz off leds no problem.

I get around 0.65gpw with hps too and im hoping for 36oz off 1000w quantum boards.

read lukios diary in his signature it shows what they can do also some hps/led side by side and the pics dont like you can see the difference.
 
Blue brother

Blue brother

Well-Known Member
lukio said:
all good man! is sphere test data good enough to sway your opinion? ive grown with both and ive put my hps in the bin (:

im cropping tonight and some of the colas are arm size...
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what height are ur plants and what's distance from boards?

glad to hear you've binned ur hps, Il probably do the same in the future, i like cdm, i like the idea of highe par with less watts. I really wanna go led route though to see if i can get my power down without a massive change in yield.

show this sphere test data please. I'm not calling bullshit on them being good lights, i just don't think they're for me, i need to believe in something before i spend my money, larger diodes on a rail will probably be the route i choose
 
Blue brother

Blue brother

Well-Known Member
key4 said:
If you get 42 oz now off 1800w hps.you only need 23oz off 1000w of led (i think) to match your current yield and most folk can pull 36oz off leds no problem.

I get around 0.65gpw with hps too and im hoping for 36oz off 1000w quantum boards.

read lukios diary in his signature it shows what they can do also some hps/led side by side and the pics dont like you can see the difference.
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what style grow do you have? How many watts per square metre would you use with hps? How many do you use with led? What was yield per square metre with hps? What is yield per square metre with led? I can comfortably guarantee 20+Oz per m2 with hps @ 900w per m2, 16+Oz per m2 with cdm @ 630w per m2. I get these results because the intensity allows light to get further down than i believe a quantum board would. I'm prepared to be proven otherwise though
 
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lukio

lukio

Well-Known Member
my plants are roughly 3 foot...lights are roughly two foot away....ish.

i grow in a 4x8 and pulled 62 ounces from 1300w last run.

i thought the sphere data was on page 105 of the QB thread but its not so i'll let @Stephenj37826 or @robincnn from HLG tell ya the deets.

i think 30 decent led watts per sqaure foot is more than enough.
 
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pedrovski

Well-Known Member
Blue brother said:
i started reading the quantum thread and by god that guy got slated fast. I don't want to get into an argument here about lumens and umol but i just can't believe that 750w of quantum board would match a 1000w hps with intensity, better spectrum yes, better coverage yes but, your claim goes against the inverse square law of physics. I think if I'm gonna do led its gonna be with big diodes. The bigger the better? Not sure. And I'm not slating those boards, they'd probably do well over a very well trained flat scrog but i cannot see them doing much at 1m from light source, at least not what I'm used to. Sorry to disgard ur info, i really am, I'm not trying to be a dick im just trying to learn about led and i don't think these boards are where my money will go.
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The quantum boards are superior to hps in every possible way apart from the initial cost being higher.

The individual diodes making up the 150w panels means a better spread of the light so therefore better penetration of the canopy. The idea that led doesn't penetrate the canopy as much as hps is false and a lot of people still seem to believe this.

for the money you would get for the extra few ozs you get in yield over hps it would easily make up for the initial cost.

I would have gone with the quantum boards if they weren't just a little out of my price range.
 
Blue brother

Blue brother

Well-Known Member
pedrovski said:
The quantum boards are superior to hps in every possible way apart from the initial cost being higher.

The individual diodes making up the 150w panels means a better spread of the light so therefore better penetration of the canopy. The idea that led doesn't penetrate the canopy as much as hps is false and a lot of people still seem to believe this.

for the money you would get for the extra few ozs you get in yield over hps it would easily make up for the initial cost.

I would have gone with the quantum boards if they weren't just a little out of my price range.
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so would it be fair to say that the light from these smaller light sources will penetrate foliage as well as hid? Or do you just mean light on an uninterupted path. For example a plant with excessive defoliation? I can kind of understand what ur saying if its used on a plant with excessive defoliation, and i can see how in a flat canopy scrog where its only the top layer being targeted then these lights will be preferable over most. But put a board above a plant with a 2ft thick bud zone and lots of foliage and i very much doubt these diodes have the foliar penetration needed to reach lower buds in a way that a higher intensity diode (or any other light source) would allow
 
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