Buds quality LEDs VS HPS
- Thread starter olsqueak
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Fractured but whole
Well-Known Member
from what I have seen, they need more cal/mag and possibly other micros.when using led
MichiganMedGrower
Well-Known Member
I suspect that is a side effect of the fuller blue in the spectrum causing more leaf growth and bloom products being used with little nitrogen.
Cmh causes this a bit. A grow ratio fixes the problem right through flower. Of course I don’t want leafier buds which is why more red in the spectrum is better for flowering.
wietefras
Well-Known Member
What's "over the top" about it? It's what's reality when you switch to (proper) leds.
I used to get 1.1g/W with HPS and with leds a lot more. It's easy to calculate how much light you get with leds. Even before you account for the 25% or so light you lose with HPS reflectors and huge amounts of walls expose to the light. Time to recoup your investment can be calculated. Unless you live somewhere where electricity is seriously cheap it's really not that long anymore. So there really can be no discussion there.
Quality is more of a subjective point, but look at what price winning growers do to get the best quality buds. Led buds don't get blasted with heat so much.
If you think another spectrum is better, you can get that too with leds. You can even recreate the same spectrum as HPS if that's what you think is superior.
There are pioneers and sheep. There are a lot more sheep than pioneers. The sheep are starting to get the message too though.
wietefras
Well-Known Member
The first time you see some of the calcium rust spots you know what you need to do. If you didn't read up properly before you started.
It's really a non-issue.
The only real change when moving from HPS to led is the climate. With HPS you are always compromising between not setting your plants on fire and keeping the distance between light and plant reasonable. The height needed for a 1000W DE can be annoying.
With leds you have less watts in the grow and therefore less heat. So you will need to make sure you properly (re) use that heat instead of just sucking it out and blowing it away. That can indeed take some effort, but there are plenty ways of adjusting for that.
OneHitDone
Well-Known Member
This ⇪
I keep wondering why LED builder keep trying to reinvent the wheel - If we know HPS spectrum grows the Dank with less leaf in the nug, why not mimic that spectrum nm for nm?
Can led not beat hps in photon efficiency if matching the spectrum exactly?
MichiganMedGrower
Well-Known Member
You can not get the same spectrum as hps or better hps and cmh combined with a full spectrum led. That is why they are working with discreet diodes in horticultural research.
You are only a pioneer in the same way hps streetlights were used to revolutionize indoor growing yields.
But then there was 20 years of improving the hps bulbs for horticulture.
I feel plenty comfortable waiting a bit longer.
Fractured but whole
Well-Known Member
kind of what I have been saying, when a led light hits the market that performs like/better than a DE, EVERYONE will know and want one. that time has not yet come.
OneHitDone
Well-Known Member
Now that is just Fear Mongering.... And you led peeps always seem to forget that there is something called an Air-Cooled hood??
This branch is growing right against the glass of a raptor with a 1000W Horti HPS - NO BURN!
Look at that Sexy Mogul Base Lamp
Fractured but whole
Well-Known Member
they love making up stories, like changing bulbs is such a hassle once every year and a half,LMFAO
OneHitDone
Well-Known Member
They may need a tissue if they knew the 600W Hortilux Blue MH in my veg is going on 2 years
MichiganMedGrower
Well-Known Member
I should have stated I am using single ended 600’s. My ceilings are too low for de.
I change my hps bulbs at 10 months and my cmh is still under a year old.
And the hps are in air cooled blockbuster reflectors.
Fractured but whole
Well-Known Member
I'm sure you have your reasons for such a quick swap, but, does it hurt your wittle arm when you have to untwist and twist in a new one?lol J/K
wietefras
Well-Known Member
We're not allowed to do lab tests overhere. I tried to get a cannalytics testset over, but customs returned it. That would only do cannabinoids anyway though.
That's why I mentioned price. It's the most tangible result of appreciation I can imagine.
There are plenty of threads with bud pictures here. Not sure how much that proves actually. I have had HPS grows with less than brilliant looking buds and/or monster buds. Even in the same grow. Genetics is a lot more important in that.
I like the long cola's with few leaves myself:
But you can also find pictures of fat and short Indica buds if that's your thing.
MichiganMedGrower
Well-Known Member
It’s the thumbscrews to open the reflector glass that is like Spanish Inquisition style torture.
wietefras
Well-Known Member
That time has long come. In fact people were beating DE HPS with burple years ago.
HPS gives you around 1.5 to 1.6umol/s/W. The bulb starts off with 2.1umol/s/W maximum for the first hour and then quickly drops. The reflector eats 18% to 20% of that light and then the walls eat a lot too since HPS needs to be so high.
Leds don't need a reflector and can start of at around 2.4 to 2.5 umol/s/W easily. So you need a lot less of those watts compare to HPS.
You are simply sticking your head in the sand. Not sure why you care so much to get over here to pretend the people (who actually are showing the results we say we get) are "wrong".
MichiganMedGrower
Well-Known Member
Nice! May I ask what temp lights you are using? Beautiful buds and they have a great calyx to leaf ratio.
Fractured but whole
Well-Known Member
oh yea. what light is as good as a de, off the shelf UL listed?
GreenHighlander
Well-Known Member
How is anyone suppose to take anything you say seriously when once again you make a completely over the top , ridiculous statement.
Also I am done here. I learned along time ago you can't argue with stupid and you sure have proven you are a prime example of stupid with just about every post.
Cheers
wietefras
Well-Known Member
Those were great. Manicuring was done in no time.
I'm using 3000K. I'd say the buds are mostly a result of genetics really. Some plants give cola's like that, but I've also gotten more leafy buds. Just like I had before with HPS. I used HPS till 2014 and then
I don't think those pictures say much though. Unless you do a side-by side grow with cuttings of the same strain perhaps.