What's your top yield with LED?

[Tesla1200]

Hi i'm migrating from 1200W of HPS to 2x650W LED in a 4x8 tent (1.2x2.4m)
When i try new lights like LED i look for the Best yields, I'm not paying 1000$ for a light wich not works as good as sodium.

Well just asking what Lights do u use actually what medium and technice and what's your yields.

Mine is:

HPS SODIUM 2x600W, sog coco slab from cuttings, average yield around 1100-1200g.

Hope that LED shows a better yields and Also high Quality buds.

 

[StareCase]

... just asking what Lights do u use actually what medium and technice and what's your yields ...

This spring, converted from blurples to the HLG 320 RSpec (3 QB288's = 340 wall watts) in a 2 x 4 SCROG using 5 gallon buckets and a soil/Pro Mix blend. Highest yield to date = 15.3 oz. cured and I am still "dialing in" the QB environment.

Apart from the finished weight, there were other aspects that I noticed:

1. Cool and quiet operation
2. Slightly frostier bud
3. More "meat" and less sugar leaf
4. Smoother smoke. (I believe this is what we all prefer.)

So IMHO, it was worth the $600 to upgrade from the blurples.

Hope that helps.

 

[Tesla1200]

This spring, converted from blurples to the HLG 320 RSpec (3 QB288's = 340 wall watts) in a 2 x 4 SCROG using 5 gallon buckets and a soil/Pro Mix blend. Highest yield to date = 15.3 oz. cured and I am still "dialing in" the QB environment.

Apart from the finished weight, there were other aspects that I noticed:

1. Cool and quiet operation
2. Slightly frostier bud
3. More "meat" and less sugar leaf
4. Smoother smoke. (I believe this is what we all prefer.)

So IMHO, it was worth the $600 to upgrade from the blurples.

Hope that helps.

Nice yield bro thats a very good result.

 

[Southside112]

I'm in a 3x3 with 440 watts of cobs and qb.
Average yeild with 4 plants in 3 gallon pots (soil) is 8-12 ounces.
When I use my rdwc setup in the same 3x3 I get 16-20 ounces.
Usually top once and run plants through a trellis.

 

[Red Eyed]

I run a little over 1200 watts from the wall in a 4x8 and have no problem hitting 4 dried oz. per plant with a 6 week veg time.

 

[Tesla1200]

I'm in a 3x3 with 440 watts of cobs and qb.
Average yeild with 4 plants in 3 gallon pots (soil) is 8-12 ounces.
When I use my rdwc setup in the same 3x3 I get 16-20 ounces.
Usually top once and run plants through a trellis.

Amazing results with rdwc

 

[Tesla1200]

I run a little over 1200 watts from the wall in a 4x8 and have no problem hitting 4 dried oz. per plant with a 6 week veg time.

How many plants?

 

[Red Eyed]

How many plants?

6-12 depending on pot size and if soil or dwc.....usually just in a 5 gallon with soil though.

 

[Renfro]

I have pulled "about a pound" out of a 2x4 tent with my cob LED and I know I could do better. If you tune your environment properly for LED and you have a good light, not some shitty blurple, then you can yield as good if not better than HPS. I have grown HPS since 1989 and it's only the last few years that LED lighting has started to impress me.

One big factor is achieving proper leaf surface temperatures (LST for purposes of this post). With HPS you get a lot of infrared, that warms up surfaces it hits (leaves). The LED lacks this abundance of IR and therefore you need warmer canopy temperatures to compensate. If the LST is too cold, growth slows to a crawl and yield suffers. I have found that a canopy temperature in the mid 80's works well for LED.

I noted the buds under LED were denser than the same cut under HPS. I noticed the terpene content was as good if not better. The bag appeal of the nugs is just better.

So I am a believer in LED now and it is only going to get better.

The energy savings are significant since you are using less watts, cooling less watts and your temp set point is higher. Some LED growers actually find they need to get creative and add heat during the cold months.

 

[Dopesmoka]

I'm in a 3x3 with 440 watts of cobs and qb.
Average yeild with 4 plants in 3 gallon pots (soil) is 8-12 ounces.
When I use my rdwc setup in the same 3x3 I get 16-20 ounces.
Usually top once and run plants through a trellis.

How long do you veg
My bad I’m faded lightweight faded off my sugar cone I just grew but I thought you were talking per plant

 

[Southside112]

How long do you veg
My bad I’m faded lightweight faded off my sugar cone I just grew but I thought you were talking per plant

Usually veg around 5 weeks. Yeah those are dried totals of 4 plants combined. So 2-3 zips per plant in soil and 4-5 zips per plant in rdwc. Sometimes more in rdwc.

 

[StareCase]

... One big factor is achieving proper leaf surface temperatures (LST for purposes of this post). With HPS you get a lot of infrared, that warms up surfaces it hits (leaves). The LED lacks this abundance of IR and therefore you need warmer canopy temperatures to compensate. If the LST is too cold, growth slows to a crawl and yield suffers. I have found that a canopy temperature in the mid 80's works well for LED ...

Yes sir ... learned that one the hard way.

The blurples had a few IR's which helped to increase the LST. After swapping with the QB's, the internal temperatures dropped to mid 70's (at best) and the plants looked anemic during the stretch when they should have grown with the most vigor. I put the driver back on top of the heat sink and reduced the exhaust rate a touch which helped to raise the internal temps about 10 degrees.

BOOYAH!! Noticed a really big difference within 1 day

 

[Tesla1200]

I have pulled "about a pound" out of a 2x4 tent with my cob LED and I know I could do better. If you tune your environment properly for LED and you have a good light, not some shitty blurple, then you can yield as good if not better than HPS. I have grown HPS since 1989 and it's only the last few years that LED lighting has started to impress me.

One big factor is achieving proper leaf surface temperatures (LST for purposes of this post). With HPS you get a lot of infrared, that warms up surfaces it hits (leaves). The LED lacks this abundance of IR and therefore you need warmer canopy temperatures to compensate. If the LST is too cold, growth slows to a crawl and yield suffers. I have found that a canopy temperature in the mid 80's works well for LED.

I noted the buds under LED were denser than the same cut under HPS. I noticed the terpene content was as good if not better. The bag appeal of the nugs is just better.

So I am a believer in LED now and it is only going to get better.

The energy savings are significant since you are using less watts, cooling less watts and your temp set point is higher. Some LED growers actually find they need to get creative and add heat during the cold months.

The worst thing it's to have to add heat in cold sites. If u pay 1000$ for a light that works like sodium but u need a heater 2000w .

 

[Red Eyed]

add heat during the cold months.

This is me...and that's with running close to 2400 watts from the wall on just lights alone. Without a heater running, I cant hit 70F in my room.

 

[Kerovan]

This spring, converted from blurples to the HLG 320 RSpec (3 QB288's = 340 wall watts) in a 2 x 4 SCROG using 5 gallon buckets and a soil/Pro Mix blend. Highest yield to date = 15.3 oz. cured and I am still "dialing in" the QB environment.

Apart from the finished weight, there were other aspects that I noticed:

1. Cool and quiet operation
2. Slightly frostier bud
3. More "meat" and less sugar leaf
4. Smoother smoke. (I believe this is what we all prefer.)

So IMHO, it was worth the $600 to upgrade from the blurples.

Hope that helps.

How do you fit 3 of those QB's in a 2x4. One light is 1x3... I use a single one of those in my 2x4...

 

[osowhom]

i use hid in the winter and led in the summer simple mathmatics

 

[StareCase]

... How do you fit 3 of those QB's in a 2x4. One light is 1x3... I use a single one of those in my 2x4 ...

Sorry about that ... I see I wasn't clear. My bad ...

You are correct in that I only have 1 light in the 2 x 4. The unit is comprised of 3 of their QB288's on the 1 x 3 heat sink. Even though I have a few successful flowering cycles under my belt, I feel that I am still learning the finer points of using this rig.

I gather that you like this light as well?

 

[TheManicOrganicDK]

I am at the moment testing out the new Lumatek Led, Zeus 600w pro, in a side by side test set-up, to try figure out how the led does compared to hps.
In week 6 atm, so havent gotten an answer just yet,but its on the way.

32 equal sized clones from same motherplant, 16 under led, 16 under hps.
So far it seems that the led side is a bit bigger, so i am tempted to believe that the led is supporting a bit more growth, both in stretch and bud development.

 

[Tesla1200]

I am at the moment testing out the new Lumatek Led, Zeus 600w pro, in a side by side test set-up, to try figure out how the led does compared to hps.
In week 6 atm, so havent gotten an answer just yet,but its on the way.

32 equal sized clones from same motherplant, 16 under led, 16 under hps.
So far it seems that the led side is a bit bigger, so i am tempted to believe that the led is supporting a bit more growth, both in stretch and bud development.

How many degrees rise the Zeus your environment?

 

[TheManicOrganicDK]

How many degrees rise the Zeus your environment?

It has lowered the avarage degree in the tent. the led replaced an hps, so exhaust is running less already. ( Use 1 x led and 3 x hps, in a 240x240 tent )
But i am changing the last 3 hps in january, and then i can remove my air intake, as temps are so much down i can just go with co2 and drop my big intake/exhaust fans.

Lumatek states that the 600wZeus is reducing HVAC with 30-40% compared to open hooded hps.