45W Led -germination Hieght

Roche Mars

Roche Mars

Member
what height for germination -- they say 48 inches - seem a bit to high ----HELP (running 2 of them) also 3by2 space - considering 4 - 4.5 pot's or 2 - 7.5 airpots - or 2 gallon and 1 - 3 gallon for an auto Please help !!! also 3 -4.5 pot might be the best ? but for yields want to use the 2 7.5 gallon ????????????
Here Here please!
Roleadro 45W How I can measure or Roleadro 300W also
https://www.amazon.de/Roleadro-Pflanzenlampe-Pflanzen-Wachstum-Gewächshaus/dp/B01HO2OIHW/ref=sr_1_16?ie=UTF8&qid=1506341431&sr=8-16&keywords=led+pflanzenlampe
 
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louis44

louis44

Member
I recommend:
- Germination Stage: 48-56 inch, 16-18 hrs.
- Vegetative Stage: 40-48 inch, 12-16 hrs.
- Flowering Stage: 24-40 inch, 10-12 hrs.
 
Cletus clem

Cletus clem

Well-Known Member
What kind of lights? 45w led really tells nothing. Who is "they"? dont over think pot size. If you are not running no till organic, it dosnt matter that much. With proper training and technique, container size is not as relevant as you would be led to believe. How do you plan on growing them?
 
Roche Mars

Roche Mars

Member
Cletus clem said:
What kind of lights? 45w led really tells nothing. Who is "they"? dont over think pot size. If you are not running no till organic, it dosnt matter that much. With proper training and technique, container size is not as relevant as you would be led to believe. How do you plan on growing them?
Click to expand...
https://www.amazon.de/Roleadro-Pflanzenlampe-Pflanzen-Wachstum-Gewächshaus/dp/B01HO2OIHW/ref=sr_1_16?ie=UTF8&qid=1506341431&sr=8-16&keywords=led+pflanzenlampe

this 45W light or Roleadro 300W

https://www.amazon.de/Roleadro-Pflanzenlampe-Gewächshaus-Wachstumlampe-Zimmerpflanzen/dp/B00ROTTOGQ/ref=sr_1_3?s=garden&ie=UTF8&qid=1506329123&sr=1-3&keywords=led+grow+light

led is new to me -(an old timer) the kind K3 L450 was my 1st pick - it will be my next if I go with LED's having a heat issue with the 2 running in that area - have a fan (90 +) degree - need a bibber fan or ezchaust. I forget how to figure "cfm's" for a grow space to detreme fan output/size ( forumal is total ft x ?)
 
Cletus clem

Cletus clem

Well-Known Member
I would go with whatever "they" said. I love leds but prefer to germinate under t5 flors. With such a high percentage of blue light, my guess is they will be less apt to get stretchy running your lights higher? Its easier to lower the lights if your babies are stretching then to try to nurse a scorched seedling. Ive never run blurple lights, probably never will so im not familiar with their behavior. I know my veg lights would torch a seedling at 12"
 
Roche Mars

Roche Mars

Member
Cletus clem said:
I would go with whatever "they" said. I love leds but prefer to germinate under t5 flors. With such a high percentage of blue light, my guess is they will be less apt to get stretchy running your lights higher? Its easier to lower the lights if your babies are stretching then to try to nurse a scorched seedling. Ive never run blurple lights, probably never will so im not familiar with their behavior. I know my veg lights would torch a seedling at 12"
Click to expand...
Hahaha, Exactly, I agree your views. I will determine his height according to the seedling situation. BTW,Are you measuring the temperature at the top of the canopy directly under the light? And are you recording your highest temperature with a record keeping thermometer?
 
Cletus clem

Cletus clem

Well-Known Member
Roche Mars said:
Hahaha, Exactly, I agree your views. I will determine his height according to the seedling situation. BTW,Are you measuring the temperature at the top of the canopy directly under the light? And are you recording your highest temperature with a record keeping thermometer?
Click to expand...
i have a digital thermometer thats probe is at about average canopy level that i monitor. My veg is in my closet so my temp control is if i look at the gauge and it says 91°, i open my door. If it says 76°, i close it. I very rarely see heat stress, plants are plenty vigorous.
 
Enigma

Enigma

Well-Known Member
No one vegetates with a 12 hour light cycle.

Those blurple panels need to be closer, they aren't very powerful.

You can put it 4' away if you want to see how bad it is, then move it closer to get the job done.

Those 1W emitter Chinese panels are very weak.

You'll see.

:leaf:
 
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