2x1200 Led Grow (need some advice)

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Borjomi

Member
First of all hello guys I am new member of this group, I would like to ask some questions and maybe some of you will be able to answer them. I am growing one strain in 45 litres pot Ayahuasca purple under 2 1200 watt led grow lights. I don't know exactly the brand of those led lights as one of my friend helped me to purchase it straight from China before it was branded but it looks exactly like Meizhi 1200 watt led grow lights. My grow room is in closed area so I have no options ventilating the area but I keep humidity levels good using dehumidifier. I am in the begining of 6th week flowering I am running my Leds with only one switch(flowering) on because it produces less heat and has better spectrum. I am hanging lights about 10 inches away as I can not switch both switches on I thought hanging closer would solve the problem and my plants will have enough light. I am feeding them with fox farm nutrients from 50%-70% which is advised by schedule(in my chart amounts are for 10 Litres). Looking at my buds I think they are not as big as I expected them to be at this stage. What can you advise? I think light intensity should be good to produce denser buds. Please give me some advice maybe I am doing something wrong.
 

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Renfro

Renfro

Well-Known Member
Give them time, they are just about to enter the phase where they fatten up. Density is one of the things that happens at the end IME. Wait until the bracts swell up and the buds get super frosty. You will probably be a lot happier then. Otherwise it's genetic.
 
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Borjomi

Member
Way2-High said:
With leds that have switches always run with both switches on when your flowering.
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Yeah, I know that it's better to run with both switches on but in that case I have to hang my lights about 18-24 inches away not to cause light burn. As I can not cool my growroom I decided to give the same amount of light by hanging them much closer than 18'. I am hanging my lights 10 inches away and I have 2 1200watt Leds not 1:))
 
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Borjomi

Member
Way2-High said:
With leds that have switches always run with both switches on when your flowering.
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Do you have any idea how close I can hang those lights with only 1 switch on? I have lux meter but lux meter can not show the exact amount of light that plants absorb because it only measures visible light and red spectrum is not a vissible light source
 
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Bookush34

Well-Known Member
if you cant cool that space with leds in it you doent have enough air flow. plants are probably having a hard time getting the fresh oxygen they need.

despite the no air flow and Chinese leds the plants look ok
 
Thundercat

Thundercat

Well-Known Member
Borjomi said:
First of all hello guys I am new member of this group, I would like to ask some questions and maybe some of you will be able to answer them. I am growing one strain in 45 litres pot Ayahuasca purple under 2 1200 watt led grow lights. I don't know exactly the brand of those led lights as one of my friend helped me to purchase it straight from China before it was branded but it looks exactly like Meizhi 1200 watt led grow lights. My grow room is in closed area so I have no options ventilating the area but I keep humidity levels good using dehumidifier. I am in the begining of 6th week flowering I am running my Leds with only one switch(flowering) on because it produces less heat and has better spectrum. I am hanging lights about 10 inches away as I can not switch both switches on I thought hanging closer would solve the problem and my plants will have enough light. I am feeding them with fox farm nutrients from 50%-70% which is advised by schedule(in my chart amounts are for 10 Litres). Looking at my buds I think they are not as big as I expected them to be at this stage. What can you advise? I think light intensity should be good to produce denser buds. Please give me some advice maybe I am doing something wrong.
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Your plants look really healthy and happy congrats! That step one for any grow.

Those colas look to have the potential to be decent sized. I do think more light would help but I don't think it's the only reason they aren't as big as you expect.

To start I would turn the other switch on. The only time that I've seen light bleaching in my 13 years of growing was when one of my plants grew a lot while I was out of town. When I got home the very top bud was about 8ish inches from my 1k hps. And that was too close. The tip area turned bleach white but the rest of the plant was fine and kept growing after I moved things around.

Based on the inverse square law 12" is pretty much the ideal distance to keep a light source for optimal intensity. Beyond that point the amount of light that hits a surface is drastically reduced. With only one switch on your not using part of the available light, so you aren't even getting the full 250ish w from each light.

More light will = more buds

Now secondly are you counting your 6 weeks from when you switched the lights to 12/12 or from when you started seeing flowers? Those pictures look more like 4ish weeks to me then 6.

Either way being nice and healthy I would expect that they will grow intensely over the next 4-5 weeks. I don't put a lot of weight on what breeders say for Harvest times. You just gotta see how long your plants take in your garden.
 
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