Can’t yield more than 2 zips a plant

[Markshomegrown]

That's not how LEDs work. Efficiency increases when dimmed

Don't believe this, so dimming an LED that hits 3.2 umol/j and it could go up to something like 3.6 umol/j
don't you think they set the LEDs to be the best setting at 100%?

 

[Markshomegrown]

Nobody but led manufacturers is saying that 300w is equal to 1000w de

a 250w hid is way less efficient than a 1000de(which is still comparable to high powered 650w+ Leds not in umol/j but in coverage and light output) the only thing op needs to do is improve his lighting.

2x2 area get you one these for $50

https://www.amazon.com/dp/B092PMWMGN/ref=cm_sw_r_cp_api_glt_i_WYT16G742PYD66VWAC1E?_encoding=UTF8&psc=1

you still ain’t gonna yield pounds or anything, but should be able to pull 4-6oz without much trouble.

250w hps may only be something like 1.10 umol/j but the harvest size would be the same as an led built for a 2ft x2ft (150w) you will save some money on electricity and the room will run cooler, that's the only benefit.

 

[Billy the Mountain]

most of the LED tests I have seen, keep the center part under the led at a level you would never use, like 900-1200par
Would be great if the whole canopy had a par reading of 750 including the sides, then I would be happy with 2.00 umol/j.
seems to me, most growers buy a light near 3.00 umol/j and dim it down so it could drop under 2.00 umol/j or it bleaches the leaves.

Don't believe this, so dimming an LED that hits 3.2 umol/j and it could go up to something like 3.6 umol/j
don't you think they set the LEDs to be the best setting at 100%?

250w hps may only be something like 1.10 umol/j but the harvest size would be the same as an led built for a 2ft x2ft (150w) you will save some money on electricity and the room will run cooler, that's the only benefit.

You really need to do some basic research on lighting

 

[NanoGadget]

Don't believe this, so dimming an LED that hits 3.2 umol/j and it could go up to something like 3.6 umol/j
don't you think they set the LEDs to be the best setting at 100%?

the thing about science is that it doesn't matter whether you believe it or not. in this case you are demonstrably incorrect.

 

[Lenin1917]

Let’s be real, mark grows crappy looking larf and is literally the last person anyone on here should take advice from.

 

[Markshomegrown]

the thing about science is that it doesn't matter whether you believe it or not. in this case you are demonstrably incorrect.

So you would buy a larger led than you need so you can dim it and this will make it more efficient?

 

[NanoGadget]

So you would buy a larger led than you need so you can dim it and this will make it more efficient?

I run most of my boards at around %80 to %85. allows me to use more boards for better spread, the diodes run cooler which adds to the longevity of the board, and less ambient heat from the heatsinks and drivers which keeps cooling costs down.

 

[weedstoner420]

Dang I wonder what OP is going to think when he logs on again...

 

[Herb & Suds]

Dang I wonder what OP is going to think when he logs on again...

Or the sacrificial lamb

 

[amneziaHaze]

Bullshit!! How do you make bigger roots in a soil grow? I grow in 5 gallon pots and yet have never seen the rootball exceed 50%, EVER!

OP, 1.5 O per plant is not all that good, you should expect 3 at least. I get 3 O per plant under 600 HPS but get the same with 400W LED, just don't get quality under 12" of canopy. I run that in an ISO.

Mykos? There is a shit tone of products on the market that focus on roots.like great white.you can get some ni name brand for 20x lower price

 

[Bignutes]

I doubled my yields once I automated my watering and started using smaller pots.

i found the same results, if you let the plant drink when it wants it promotes more growth, the whole wet and dry cycle is BS. Moist all the time, the plants adjust to it and they grow better.

 

[Horselover fat]

So you would buy a larger led than you need so you can dim it and this will make it more efficient?

Yes. There is no real set power leds are made for. You can put more current through them and get more light, but the more it heats up the less efficient it gets. Rated power is just what the manufacturer thinks is the sweet spot between how many diodes you need and how efficient they are (/how much you have to cool them). The boards I run in my diy could be run at 140w each, but I run them at 80w to reach higher efficacy. I need more boards to reach my desired light level, but less wattage. And the boards could run even higher than 140w if they had more cooling.

 

[Horselover fat]

QUOTE="Billy the Mountain, post: 16762149, member: 1048946"]
There's no 250w hps lamp that has 1.6umols/watt

MIgro tested a 600w SE HPS and it was 1.26umols/watt

A 250w HPS is far less efficient
[/QUOTE]

Yawn.

 

[Markshomegrown]

Let’s be real, mark grows crappy looking larf and is literally the last person anyone on here should take advice from.

I run most of my boards at around %80 to %85. allows me to use more boards for better spread, the diodes run cooler which adds to the longevity of the board, and less ambient heat from the heatsinks and drivers which keeps cooling costs down.

so you buy a few LED panels and turn them down, I spend £50 on a few bulb holders buy some bulbs, spread them out so the light spread is even, about 370w for a 1.1m x 1.1m sounds good and flower them off, here they are just under 5 weeks in flower 12/12.

cheap and easy.

 

[amneziaHaze]

Its true if you dim it lives longer.no idea about the

i found the same results, if you let the plant drink when it wants it promotes more growth, the whole wet and dry cycle is BS. Moist all the time, the plants adjust to it and they grow better.

Yea but dry stress promotes more oil production.there is a lot of academic reaserch on it.same with chilly peppers

 

[Bignutes]

Its true if you dim it lives longer.no idea about the

Yea but dry stress promotes more oil production.there is a lot of academic reaserch on it.same with chilly peppers

i read that and agree with you, I’m just talking about overall grams produced.

 

[DieselNuts]

Bullshit!! How do you make bigger roots in a soil grow? I grow in 5 gallon pots and yet have never seen the rootball exceed 50%, EVER!

OP, 1.5 O per plant is not all that good, you should expect 3 at least. I get 3 O per plant under 600 HPS but get the same with 400W LED, just don't get quality under 12" of canopy. I run that in an ISO.

You seem wicked smart so I'll be reading everything you post with baited breath from now on!
My Grampa will be sad to hear that bigger roots don't equal bigger fruits.
I'll be sure to sit him down when I give him the news. Thanks!

 

[greenaffiliates]

That depends entirely upon the specific strain of cannabis (some generally yield more than others), the growing conditions the plant is subjected to, and the skill level of the grower.

 

[StareCase]

... I grow in 5 gallon pots and yet have never seen the rootball exceed 50%, EVER! ...

Really? Cause I also grow in 15" tall 5 gallon buckets and each crop the roots are starting to come out of the drain holes - regardless of whether it's a soil or a peat based grow.

 

[Lenin1917]

My bad on being a dick there, I was in a fucking mood the other day.