LED and BUD QUALITY

[ReprobateMind]

I hope i didnt push you towards that but i have to admit i dont like the +160w per board approach, it just get so hard with high hanging height and not being very symmetric for a square tent. Should work better for something slightly larger than a 4x2 though

No worries. I grow in a basement with dehumidifiers. I've had the light for a year and every grow turns to shit and I know it's from the LED and my ignorance on how to use it properly. It's just easier for me to hang a carbon filter, inline fan, and light in a tent and just add water and nutes and not really have to worry about varying temps, humidity, PPF, PPFD, μmol, etc.

 

[Rocket Soul]

No worries. I grow in a basement with dehumidifiers. I've had the light for a year and every grow turns to shit and I know it's from the LED and my ignorance on how to use it properly. It's just easier for me to hang a carbon filter, inline fan, and light in a tent and just add water and nutes and not really have to worry about varying temps, humidity, PPF, PPFD, μmol, etc.

The main thing about growing with leds is just to reverse climate from HPS: what used to be temps max 80F becomes min 80F for full intensity. If your setup allows this then the rest is very easy, just as you say, water and nutes, just a little higher. Hope youll try it out

 

[Ca++]

No idea. Never tried leds with organics. Its still bottles right?
The best grower i know, the only one ive seen hit 2g/w with +400w of leds per meter, the way he deals with nutes is that he runs 1 part mega crop and some calmag and doses by spoon. If they look hungry he just adds a little to his usual measure. If he got burnt tips he use a little less. But he doesnt really do much checking of ec and ph, he just knows how his nutes, water and plants act from experience. Id be lost trying to do that.

Just keep your eyes peeled but keep on measuring and try to establish a base line. First time you may have to push a bit over to find where your plants start to be over fed. Sorry its the best i can do for you

Mixing by the bottles instructions, could offer a basic EC reading, that can then be watched for the rises and falls expected.
I have used organic, and the delay between adjustment, and seeing effect, was a bit hard to work with. Reactive feeding is hard work, when you need to wait days to see if things worked. Each thing in the feed, taking a different time to become available. Weather and microheard depending.
Best bet is follow the bottle. I was to waste, but a recirc could be a different ball game. As you get converted products back to the tank.
I used the mistakenly sold bottle up quickly. Mixing with other feeds destined for tomato's as the P in it was crazy high. Major brand, I'm happy to forget

 

[Herbal-Essence]

what used to be temps max 80F becomes min 80F for full intensity.

with a heatmat I pretty much hit exactly these temps now. but I still struggle to get the nutes dialed in correctly on organic soil mix. Last round (my first LED grow, and the first grow since about 10yrs) I didn't have these issues once I've adjusted the temps(well had mildew instead -_-), but I used a different soilmix with mineral nutes in it, seems to me that made all the difference...?
I don't have any EC meter or anything like that, so I kinda go by look and feel, might not be the best approach for this issue, but I'm stubborn
I guess the easiest fix would be to go back to the mineral soilmix next round...

soil with mineral nutes was Compo Sana QBE (German brand)
and the organic soil I use atm is Plagron Royal Mix

 

[Rocket Soul]

with a heatmat I pretty much hit exactly these temps now. but I still struggle to get the nutes dialed in correctly on organic soil mix. Last round (my first LED grow, and the first grow since about 10yrs) I didn't have these issues once I've adjusted the temps(well had mildew instead -_-), but I used a different soilmix with mineral nutes in it, seems to me that made all the difference...?
I don't have any EC meter or anything like that, so I kinda go by look and feel, might not be the best approach for this issue, but I'm stubborn
I guess the easiest fix would be to go back to the mineral soilmix next round...

soil with mineral nutes was Compo Sana QBE (German brand)
and the organic soil I use atm is Plagron Royal Mix

If you have a decent ec/ph pen its as easy as measuring just measuring input and runoff while maintaining a climate that maintains a healthy transpiration; basicly seeing that "leaf boner" where leaves are hanging and sagging.
Quality coco (theres some really bad brands) with hydro nutes, measuring input and output, and being able to get your climate inline for transpiration and then you will not have these problems, its as easy as that. The problem with failing led grows is usually that the user figures you can skip on one of these things or grow the same that they used to with hid; stubbornly doubling down on the same thing grow after grow. Im not saying this is your case but i urge you to at least try once before getting rid of the HLG. Once.you get it right and beat all your expectations its a really good feeling.

 

[Scfarmer]

That's too much work for this dinosaur I'm gonna sell the light and buy a CMH or HPS.

If you do do that then go with the CMH ( provided you have the canopy height) bare bulb 1x 315 over a .8m foot print. I did really well with two 315s Agro lamps over a 1.2 . Keeping it cool in summer was a bit of a pain but if you can up your humidity to suit then 30c temp isn't an issue .
HPS may yield you a little more but the flavour, terpine/bud quality and density is far superior from the CMH also I find plants love them, I never have issues under those lights.
I ran two tents for ages one with 1000w air cooled HPS and one with dual bare bulb 315 CMH. Same clones , same feed same environment temps ( temp sometimes a bit higher with the CMH) I would get nute issues with the HPS but never with the CMH

 

[Scfarmer]

Also the CMH tent always over takes the HPS tent in terms of which one is ready first.

 

[ReprobateMind]

Thank you. I'm gonna put a 315w CMH in a 3'x3' tent.

 

[SaveTheBrains]

I was looking at a Sanlight Evo but any recommendations are more than welcome. The growshop where I go has plenty of options, Gavita etc. Thinking of this one for the 152x152x225 sativa tent. Costs around 600€ with the dimmer etc but I've heard only good about these.

This supposed to be from the best around. Many people have them and they kicking asses.


I Use one module of that Sanlight is 50 watt has for the far red and green but I prefer a mixure of led s the Hlg boards , with Sanlight and with a cob 3500k .

What I have noticed is the sanlight colours the plants red pinkish alot more from others leds I use


What has surprising Quality and super cheap and seems Haze to like it alot and is not much talked is this black cobs makes very dense flowers and no colouring .

 

[Rocket Soul]

This supposed to be from the best around. Many people have them and they kicking asses.


I Use one module of that Sanlight is 50 watt has for the far red and green but I prefer a mixure of led s the Hlg boards , with Sanlight and with a cob 3500k .

What I have noticed is the sanlight colours the plants red pinkish alot more from others leds I use


What has surprising Quality and super cheap and seems Haze to like it alot and is not much talked is this black cobs makes very dense flowers and no colouring .



View attachment 19078207

Its one of the few brands that doesnt seem to have their production in China. They also work very closely with osram and have access to their best diodes.

 

[SaveTheBrains]

Its one of the few brands that doesnt seem to have their production in China. They also work very closely with osram and have access to their best diodes.

Yeah they are and I saw very good results., Is very good choice and they have crazy life span 100000 hours plus they can be repaired. Is very good value for money .

 

[Rocket Soul]

Yeah they are and I saw very good results., Is very good choice and they have crazy life span 100000 hours plus they can be repaired. Is very good value for money .

That sounds very good but i suspect too good to be true. Generally these numbers, lm70 and such, are based on lab tests and diode lifespann is actually shorter in real life in the more rough environment of a grow space. At least the few real life tests ive seen support faster deterioration than indicated by diode manufacturers and youre likely to have a power source failure sooner than 100000 hours. But i guess in the end we will see in 15-20 years how many are still using the same 2024 bought light.

But i fully agree that Sanlight would probably be one of the top quality and durability lights on the market, its just that i wont believe 100000 hours until i see it.

 

[SaveTheBrains]

That sounds very good but i suspect too good to be true. Generally these numbers, lm70 and such, are based on lab tests and diode lifespann is actually shorter in real life in the more rough environment of a grow space. At least the few real life tests ive seen support faster deterioration than indicated by diode manufacturers and youre likely to have a power source failure sooner than 100000 hours. But i guess in the end we will see in 15-20 years how many are still using the same 2024 bought light.

But i fully agree that Sanlight would probably be one of the top quality and durability lights on the market, its just that i wont believe 100000 hours until i see it.

I totally agree in that ,manufactures put out the life spam of their leds and boards and others dont claim so long hlg is 50000 for example . it matters also how the set up is tuned to run the cheap led usually run like a tuned car at the max .
Also you can repair them but yeah I agree time will say what is what we just need to wait .