Lighting Quantum board thread.

[mcpd_refugee]

Thank you @mcpd_refugee for this post, i will be re-reading this over and over...

When it comes to to LED's I'm a trial and error kinda guy. I think I get what your saying and the more i read it it makes more sense but is it really more of a rule of thumb to go by? and go with that green finger gut feeling.
Some of those auto's real do need a lot less light and I've seen a massive difference from strain to strain in the same tent over a quite a few grows, even between genotype's. On one grow I did a full tent (6 of each) of GG4 (fastbuds) and G14 (fast buds). The GG4 shied away from the light and I had loads of light issues, cal mag etc. Now the G14 showed now signs of stress and grew to with in 5" from the cobs, lapping the light up like it was going out of fashion. Not one issue with the G14... those observation's are made with citizen 1212's at 3000/3500k, 1400ma and 1050ma.

Different story with my photo periods, not had an issue's yet apart from they get under the light for the first week and they are getting used to it from a T5.

So...it could be that the DLI and PPFD requirements are different between autos and photos. It could also be the the DLI and PPFD are strain dependent.

In any event, you have to read your plants, know exactly what that the issue is your light and not a deficiency or toxicity issue and make trial and error adjustments of your light. I guess I’ll just chalk it up to yet another piece of knowledge I have to hang onto in my inadequate knowledge storehouse.

 

[Slater]

So...it could be that the DLI and PPFD requirements are different between autos and photos. It could also be the the DLI and PPFD are strain dependent.

In any event, you have to read your plants, know exactly what that the issue is your light and not a deficiency or toxicity issue and make trial and error adjustments of your light. I guess I’ll just chalk it up to yet another piece of knowledge I have to hang onto in my inadequate knowledge storehouse.

man you was dropping the knowledge in that last post

 

[bignugz420]

I just remembered something else I read with regards to intense lighting. I think it was an article on High Times or Maximum Yield or some other such place. Anyway, the article said that with intense lights, better result can be achieved with a 6/2 lighting schedule because problems arise when you subject the light to an extended period of intense lighting. The article said that better result could be had by running 6/2 three times per day. I don’t remember off the top of my head whether they cited or mentioned any study for that. Anyone ever try this?

I do 12+1 for veg on my mother's and once clones are rooted

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[bakEQuatorial]

Got another sexy light to show you guys! Courtesy of Russell from R2T.

Samsung LM301B Top Bin diodes with CREE 660nm diodes mixed in. 6 x 288 boards fitted with aluminum fixture and 600W HLG driver. 1728 diodes in total.

All for under USD600 before shipping. Not bad at all. However, seeing how powerful my V1 boards are (light stress at 33%), not sure if an even more powerful light is needed?

With that being said, I will chomp at the opportunity to test these lights if Russell wants a tester...so LOL!


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[Slater]

Got another sexy light to show you guys! Courtesy of Russell from R2T.

Samsung LM301B Top Bin diodes with CREE 660nm diodes mixed in. 6 x 288 boards fitted with aluminum fixture and 600W HLG driver. 1728 diodes in total.

All for under USD600 before shipping. Not bad at all. However, seeing how powerful my V1 boards are (light stress at 33%), not sure if an even more powerful light is needed?

With that being said, I will chomp at the opportunity to test these lights if Russell wants a tester...so LOL!


Sent from my iPhone using Tapatalk

 

[bignugz420]

Got another sexy light to show you guys! Courtesy of Russell from R2T.

Samsung LM301B Top Bin diodes with CREE 660nm diodes mixed in. 6 x 288 boards fitted with aluminum fixture and 600W HLG driver. 1728 diodes in total.

All for under USD600 before shipping. Not bad at all. However, seeing how powerful my V1 boards are (light stress at 33%), not sure if an even more powerful light is needed?

With that being said, I will chomp at the opportunity to test these lights if Russell wants a tester...so LOL!


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Those lights are dope as hell I definitely am grabbing more dyi lights

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[bakEQuatorial]

Im putting 2 of these DIY rack bars on top of heatsink to stabilize them. Have a fan blowing on them too.

Can anyone tell me if this is ok?

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[Slater]

Im putting 2 of these DIY rack bars on top of heatsink to stabilize them. Have a fan blowing on them too.

Can anyone tell me if this is ok?

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I can't see why not, may even help with heat dissipation.

 

[918AutoGrower]

I thought I would share my most recent build. I built it for a 24” x 24” space for my mother plant. I have my Jack Herer mother on a moveable table that I build so I can pull her out and adjust tie-downs, remove undergrowth, etc. Anyway, this light was built just for this little space to the left of my main grow space.

I used 5x qb 96 boards, 3x in 3500K and 2x in 5000K, which averages out to 4100K. I used a Meanwell HLG-240H-C1750A driver. Since this isn’t in a tent with reflective panels, I chose to put some reflectors on it to help control light spillage.

Current Autoflower Grow

https://r.tapatalk.com/shareLink?sh...ads/New-3x-C4-Auto-Grow.1503982/&share_type=t

 

[F.N.]

What I have learned is they need dimming capabilities or you will fry leaves.