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Missing red on me leds ?

Bio boy

Active member
They are in the right place. However you have spoke of the wavelength, and the chart us using frequency. They also use Watts not Moles. It's a bit foreign to us, but is right. Sing the rainbow song. Red and yellow is the start. Not Blue and Violet. Or look at the colours a TV uses, it's RGB not BGR.

I found the graph interesting, as the portion of blue is low. Down here, winter see's lower blue than summer, as Red gets through better. This is why SAD lights put the blue back. However, looking at what's in space, then here, I don't get the impression from the graphs, that blue is lost faster. Though I know what I see with my own eyes. So something is missing from the puzzle as presented.

I find the 'full spectrum' label to be marketing. A quick 'full spectrum LED' image search, gives a page of purple lighting, with no whites at all. Though many are lights using a range of LEDs, non were using white. I think they are telling us what we want to hear. Perhaps in some way these lights do make a little bit of everything we can see, but then so does an incandescent.


I keep switching things about, and have not settled with a system, feed or lighting choice, since flowering with LED. So I'm not dialed in at all. However, mixing LED with HPS has been the best outcome. Enough that I might now of settled with my current system and mixed lighting, though I'm still between feeds.
That’s how I feel, I felt when I used 1 led 1 hps my yield was substantially larger than with 2 led even though one is a replacement for 1000watt
 

prune

Active member
Veteran
For what it's worth, I've been growing for six decades, under most every light source available, from sun to flouresent, and DE just does it best.
You can quibble and quarrel over light spectrum this, and diode that, but when it comes down to just WINNING, It's HPS DE.
Why? It's the hidden energy, the 33% that disappears into the AC, instead of your light meter. The energy that LED "saves" you. That energy secretly boosts transpiration, improves plant health, and drives higher and faster growth rates.
If you're growing with an accountant glowering over your shoulder, fine, you're stuck with LED, I understand. But if you're down for doing the Lord's Work, do it DE...
 

Bio boy

Active member
For what it's worth, I've been growing for six decades, under most every light source available, from sun to flouresent, and DE just does it best.
You can quibble and quarrel over light spectrum this, and diode that, but when it comes down to just WINNING, It's HPS DE.
Why? It's the hidden energy, the 33% that disappears into the AC, instead of your light meter. The energy that LED "saves" you. That energy secretly boosts transpiration, improves plant health, and drives higher and faster growth rates.
If you're growing with an accountant glowering over your shoulder, fine, you're stuck with LED, I understand. But if you're down for doing the Lord's Work, do it DE...
What site can you prove this theory ?
dobyou have evidence on the claim or pics etc to back it up, genuinely curious …I build my leds and yields have smashed hps
 

Bio boy

Active member
They are in the right place. However you have spoke of the wavelength, and the chart us using frequency. They also use Watts not Moles. It's a bit foreign to us, but is right. Sing the rainbow song. Red and yellow is the start. Not Blue and Violet. Or look at the colours a TV uses, it's RGB not BGR.

I found the graph interesting, as the portion of blue is low. Down here, winter see's lower blue than summer, as Red gets through better. This is why SAD lights put the blue back. However, looking at what's in space, then here, I don't get the impression from the graphs, that blue is lost faster. Though I know what I see with my own eyes. So something is missing from the puzzle as presented.

I find the 'full spectrum' label to be marketing. A quick 'full spectrum LED' image search, gives a page of purple lighting, with no whites at all. Though many are lights using a range of LEDs, non were using white. I think they are telling us what we want to hear. Perhaps in some way these lights do make a little bit of everything we can see, but then so does an incandescent.


I keep switching things about, and have not settled with a system, feed or lighting choice, since flowering with LED. So I'm not dialed in at all. However, mixing LED with HPS has been the best outcome. Enough that I might now of settled with my current system and mixed lighting, though I'm still between feeds.
Any pics ca ?
 

Ca++

Well-known member
Any pics ca ?
I can take one for you. What are you interested in.

I think it's the heat of the lamp. I can mimic some HID effects with additional lighting, but the heat is obviously different, even with my eyes closed. Water use increase with a 50/50 mix, is about 25%. This is all water loss at the top, and will be bringing feed along with it. Higher feed tends to cause stretching as an early sign, before damage. So some of the stretch won't be caused by light, but heat. With light, I can't put as much stretch back, as with radiant heat. HID is fierce. Perhaps it's only 1c higher leaf temps, but that ignores the fact it's only 1c, because of how much extra water they use to keep cool.

I switched a failing 4 for a 6 last week. The 6 starts to tax me extract (I didn't adjust for it) and the smell evolution in 24 hours was eye opening. The HID smells I had actually forgotten, were the most pungent in the room. Which is still ongoing.

It's a very different growing environment under HID. It's not just a different colour. The LED plants can get more light than ever before, while getting less heat than ever before. It's very different. Beyond adding a few colours back, I believe
 

Bio boy

Active member
I can take one for you. What are you interested in.

I think it's the heat of the lamp. I can mimic some HID effects with additional lighting, but the heat is obviously different, even with my eyes closed. Water use increase with a 50/50 mix, is about 25%. This is all water loss at the top, and will be bringing feed along with it. Higher feed tends to cause stretching as an early sign, before damage. So some of the stretch won't be caused by light, but heat. With light, I can't put as much stretch back, as with radiant heat. HID is fierce. Perhaps it's only 1c higher leaf temps, but that ignores the fact it's only 1c, because of how much extra water they use to keep cool.

I switched a failing 4 for a 6 last week. The 6 starts to tax me extract (I didn't adjust for it) and the smell evolution in 24 hours was eye opening. The HID smells I had actually forgotten, were the most pungent in the room. Which is still ongoing.

It's a very different growing environment under HID. It's not just a different colour. The LED plants can get more light than ever before, while getting less heat than ever before. It's very different. Beyond adding a few colours back, I believe
I’d love to see how you’ve set the mixed lights up and maybe if you got some bud porn to see , am thinking to add in this hps dead centre of my pannels for winter heat if nothing more , you are always in the interesting topics I am in ca cant can’t say I’ve ever seen your grow n I’d love to we agree on somany views hehe
 

Ca++

Well-known member
Just got a percy grow on these days. So I'm not making a great effort. This is a 1.4 tent, with 120w QB in each corner, and I just got the 600 in, that I have been planning for a year lol
It's the 400 here, unplugged for the pic, about 6 months ago.
barr (1).jpg
I think I have a bud shot from the last run. I sometimes take them, but I'm not cataloguing these grow, as its... well it's not very good really.
flash.jpg
20230706_204951.jpg

That was 6 weeks a think. Maybe 650ppfd, but with my 6, I'm likely 850ppfd. Which caused them to rethink their finishing size. I'm happy with the light this week. I just need to plumb my waste to the household sewer. Get a tank that fills, instead of a kitchen bin I carry. Then stop flowering in coco, with neither flower nor coco feeds. Then I might catalogue the room properly. Say... 2027?
 

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