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LED height recommendations - 120w Kingbrite

TheWeedian
TheWeedianstarted grow question 4 years ago
Hi guys, I need some recommendations for my LED height. I'm running a Kingbrite full spectrum 120w bar light at 32" from my pots at 50% power and I'm worried my girls are stretching. Can anyone give me some advice please? It would be really appreciated :)
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Week 1
Setup. Lighting
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Justa_Retard
Justa_Retardanswered grow question 4 years ago
I run my 300w full spectrum LED at 15 - 20cm (5.9 - 7.9 inches) from the top of the tallest plant.. At 10 cm (4 inches) it starts slowly damaging the leaves. - My seedling is around 40 cm (15.5 inches) from the lamp, and not stretching at all. I'd say you could go a lot closer than you currently are, and turn it to full power as well. All you really need to do, is make sure it's not burning the plant, which an LED generally need to get pretty close to do. You can check that by hand. If you can hold it where your plant is, for a couple of minutes, without it starting to feel hot, you're good.
Fusion
Fusionanswered grow question 4 years ago
Looks like she stretched a bit. If the next st of leaves don't start getting bigger today lower /increase the light.
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CUBULATOR
CUBULATORanswered grow question 4 years ago
Like hempkid said , 18° is reccomend for mine also but I do go a little closer.
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Hempy_The_Kid
Hempy_The_Kidanswered grow question 4 years ago
My LED is 16" but 18" is recommended by the maker. I'm guessing you need to move light closer. It should tell you in manual.
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