LED light distance and lumen PAR questions??

If anyone could help me out with lumens and how far should have them from my new veg babies would be great

SolarTech300w LED Grow Light (PAR&Lumen Rating)
distance from plant/ PAR/ Lumen
30cm/ 1,150/ 50,500
50cm/ 710/ 33,500
100cm/ 200/ 10,800
150cm/ 90/ 5,400
200cm/ 51/ 2,900

SolarTech450w LED Grow Light (PAR&Lumen Rating)
distance from plant/ PAR/ Lumen
30cm/ 1,215/ 75,700
50cm/ 680/ 50,200
100cm/ 280/ 16,200
150cm/ 139/ 8,100
200cm/ 86/ 4,350



Here are my plants are at 2 weeks can follow ma journal and help me out

i'm not positive, but i don't think you have to worry much about getting too many lumens with an led panel.

well apparently seedlings cant take the led at full power spectrum too strong... so was wondering if i had it at 30cm and it was giving out 50k lumens it might be too intense cant seem to find anything on it

luciferi said:

well apparently seedlings cant take the led at full power spectrum too strong... so was wondering if i had it at 30cm and it was giving out 50k lumens it might be too intense cant seem to find anything on it

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If they start to bleach then you know they're waaaaaaaaayyyyyyy too close.
They look good to me as is. So I suppose you're doing it right. Looks like very tight internode spacing.

luciferi said:

well apparently seedlings cant take the led at full power spectrum too strong... so was wondering if i had it at 30cm and it was giving out 50k lumens it might be too intense cant seem to find anything on it

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I've done it before with a HPS on some bagseed.
I've never used an LED (thinking about investing in a panel for early vegging though)
I seem to remember a thread and the guy did some totally decent DIY LEDs. He got hit with a little light bleaching at first.

@MonkeyGrinder is it a good thing to have tight internode spacing or should i raise the light a little so it sprouts abit more???

1000 par/umole is optimal for cannabis

how about the nodes should they space out more or bushy like this is good?

luciferi said:

@MonkeyGrinder is it a good thing to have tight internode spacing or should i raise the light a little so it sprouts abit more???

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I would go even 60cm if you don't want them super bushy.... but if 30cm is vegging fine and they don't seem stretchy, keep it there. Flower about the same height or even 18".

@Abiqua I think i might go 50-60 just because the space between nodes are so small a bit too bushy for my liking
but who knows i will try thiis one this way first then c in ma next setup what i change... i just potted 3autos yesterday tooo

luciferi said:

@Abiqua I think i might go 50-60 just because the space between nodes are so small a bit too bushy for my liking

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werd, I think you know whats up...

but who knows i will try thiis one this way first then c in ma next setup what i change... i just potted 3autos yesterday tooo

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best piece of advice to give yourself.....

I am trying to select for auto trait, then isolate and hopefully reproduce, been awhile since I have seen an early flower trait, pisses me off since i tossed one I had

luciferi said:

@MonkeyGrinder is it a good thing to have tight internode spacing or should i raise the light a little so it sprouts abit more???

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Well do you want a short bush or taller bush? Some people like em small and compact. Especially if they're working with a small space. If space isn't an issue then you could raise the lights no problem. But they'll stretch out come flower time anyways.

@MonkeyGrinder
Do shorter bushes produce less yield or do taller bushes produce more yield?? or does it just depend on how u train the plant.. im planing on a scrog grow just so canopy can be level