chooselove
Active Member
Minimum one can expect in yield growing with high quality LEDs?
Grams per watt high quality LEDs
- Thread starter chooselove
- Start date
jonsnow399
Well-Known Member
About a pound.
Photon Flinger
Well-Known Member
0.
Stephenj37826
Well-Known Member
Honestly with decent to higher yielding strains you can expect .8+ gpw on your first run unless you don't know what you are doing at all. Even then if you do proper research you'll do great.
If you are somewhat experienced 1+ is the norm.
If you are somewhat experienced 1+ is the norm.
chooselove
Active Member
Thanks @Stephenj37826. Sounds good. Since LED draw less watts measuring it with the equivalent wattage of 1000 watt lamp, 1000 grams per light is really possible
CobKits
Well-Known Member
thread comes up once a week
a million variables but it seems the consensus is 0.7-1.0 for HPS and 1.0-1.5 for HQ LEDs assuming equal grower skill level and attention to garden/training.topping etc.
if you account for leaf temps the fundamental fact of 30-40% more usable PAR to the plants with LEDs yields approximately proportionally the same yield gain. that said it isnt realistic to put the same LED wattage in a space and expect 30% yield gain as youre running into other limitations like g/SF, roots and nutes, etc. most people can repalce 1000 hps with 600-700W of leds and get the same yield out of a space
a million variables but it seems the consensus is 0.7-1.0 for HPS and 1.0-1.5 for HQ LEDs assuming equal grower skill level and attention to garden/training.topping etc.
if you account for leaf temps the fundamental fact of 30-40% more usable PAR to the plants with LEDs yields approximately proportionally the same yield gain. that said it isnt realistic to put the same LED wattage in a space and expect 30% yield gain as youre running into other limitations like g/SF, roots and nutes, etc. most people can repalce 1000 hps with 600-700W of leds and get the same yield out of a space
chooselove
Active Member
Thanks @CobKits appreciate it and apologies for the redundancy.
CobKits
Well-Known Member
no worries im just trying to squelch the usual resulting following discussion
"grams per watt isnt a good metric, it depends on grower skill,how long you veg, the strain you use, if you train or scrog, how dense your w/SF is, etc etc"
the 1-1.5 i quote is middle ground. ive had crops go south and still yield 1 gpw with led and could never pull that off with hps. 1.4 is definitely being done all the time with LED
for some excellent documented grows check out growmau5's channel. he recently documented 1.7 with a 2-year old cree rig. that same grow would be 1.9ish with todays cobs/boards
"grams per watt isnt a good metric, it depends on grower skill,how long you veg, the strain you use, if you train or scrog, how dense your w/SF is, etc etc"
the 1-1.5 i quote is middle ground. ive had crops go south and still yield 1 gpw with led and could never pull that off with hps. 1.4 is definitely being done all the time with LED
for some excellent documented grows check out growmau5's channel. he recently documented 1.7 with a 2-year old cree rig. that same grow would be 1.9ish with todays cobs/boards
chooselove
Active Member
Well that's really awesome, thank you for your insight & for reminding of growmau5's channel, it's excellent must watch more
shannonball
Well-Known Member
so ,many variables as chooselove says. your experience with growing is the best indicator and then the LED lighting, conditions, strains, genetics, growing medium, ferts, etc. Been growing for 25 years so we'll tried lots of methods and every grow is different. Presently using 900 watts from a Timber Vero V29s cobs running at about 80%.
Budies 101
Well-Known Member
#1 is strain
#2 is strain
3# is environment
4# is grower
5# nutes
6# lights
The order of course is opinion but I can say for myself I have grown some very good stuff but about 6 months ago got a few strains that are far better than the vast majority of stuff I see around and my genetics. I grew the strains I got out right next to my old strain and nothing I as a grower could do would make my inferior strain perform as well as the superior genetic strains... My strains are top shelf as is, just not "holy fuk" top shelf, I'd say these new genetics are easily sellable to anyone as top top shelf.
Point of the story is I have seen amazing grows with lots of different lights. With poor yielding genetics a high end grower would only be able to manipulate the plant so much for weight. With crazy yielding genetics a mid level grower can grow stuff that blows your mind.
I believe if you grew with high end LED (3590/lm561c) and used the same wattage as HPS you would destroy HPS. What people are trying to figure at this point is how many watts they need in LED to match HPS grows and it looks to be settling around 60%, 1000watts HPS to 600watts LED if the led is top of the line.
So, with top bin leds that are the best cree, bridgelux, citizen, samsung and a few others offer run at around 60% the watts of whatever HPS you used the weight should be relatively the same.
Again, just my thoughts. In so many years all commercial growers will be growing with LED.
#2 is strain
3# is environment
4# is grower
5# nutes
6# lights
The order of course is opinion but I can say for myself I have grown some very good stuff but about 6 months ago got a few strains that are far better than the vast majority of stuff I see around and my genetics. I grew the strains I got out right next to my old strain and nothing I as a grower could do would make my inferior strain perform as well as the superior genetic strains... My strains are top shelf as is, just not "holy fuk" top shelf, I'd say these new genetics are easily sellable to anyone as top top shelf.
Point of the story is I have seen amazing grows with lots of different lights. With poor yielding genetics a high end grower would only be able to manipulate the plant so much for weight. With crazy yielding genetics a mid level grower can grow stuff that blows your mind.
I believe if you grew with high end LED (3590/lm561c) and used the same wattage as HPS you would destroy HPS. What people are trying to figure at this point is how many watts they need in LED to match HPS grows and it looks to be settling around 60%, 1000watts HPS to 600watts LED if the led is top of the line.
So, with top bin leds that are the best cree, bridgelux, citizen, samsung and a few others offer run at around 60% the watts of whatever HPS you used the weight should be relatively the same.
Again, just my thoughts. In so many years all commercial growers will be growing with LED.
DrBlaze
Well-Known Member
I would switch 5-6 around
Budies 101
Well-Known Member
Yeah, can't have one without the other so it's kinda a tie haha. Every step is important, none can exist without the other but when asking about yields/thc/cbd IMO the genetics is 80% (random feel good %) of the equation.I would switch 5-6 around
shannonball
Well-Known Member
they are all inter-related and of equal importance.
Ghost of Davy Jones
Well-Known Member
someone told me yesterday that if u veg 1 plant about 8 weeks and top a few times that you can get about a pound... assuming the space is well lite with decent lights. A led light would be fine if it's big and strong
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DrBlaze
Well-Known Member
8 out of 10 cannabis growers surveyed agree...
Ghost of Davy Jones
Well-Known Member
Light, food, water... Kinda seem like the basics.
Ghost of Davy Jones
Well-Known Member
@CobKits ... If a guy has 2 led lights, 1 is 185w, the other is 355w... In your opinion would that be equal to a 400w/600w hps maybe?
chooselove
Active Member
All the factors are important and work together for the good but strain / genetics seem to be really key