ditching hps for quantum lights
- Thread starter cobber
- Start date
CCCmints
Well-Known Member
How could that not be a con?
Kushash
Well-Known Member
Just seems insignificant and weakens an argument. Takes 2 minutes to do and is quite easy.
Kushash
Well-Known Member
Of course I'm seeing it from a small grow not a large scale so that would be different I suppose.
I think you'll find what im saying is true.
The sun is 91 million miles from earth. Heats the earth, and still puts out 10 000 lumens, per square foot. Puts out all the PAR, any plant needs too.
Hows that for penetration????
I think you need to do the reading, sorry pal.
Stop the insults too. I never once threw any at you.
Discuss, dont throw a tantrum.
Viceman666
Well-Known Member
Keep in mind the cost of replacing the bulb every year or twice a year for some people.. while LED are rated for 5-10 yrs minimum
CCCmints
Well-Known Member
You're babbilng nonsense lol no way for me to help you see otherwise.I think you'll find what im saying is true.
The sun is 91 million miles from earth. Heats the earth, and still puts out 10 000 lumens, per square foot. Puts out all the PAR, any plant needs too.
Hows that for penetration????
I think you need to do the reading, sorry pal.
Stop the insults too. I never once threw any at you.
Discuss, dont throw a tantrum.
Kushash
Well-Known Member
True. I wasn't referring to changing the bulb due to age.
I was referring to the comment about switching from MH to HPS when flowering starts.
Smoking some bubble hash I made yesterday, I better get out of here, to waisted.
Viceman666
Well-Known Member
From your experience with LED? Really? I guess youre one of those bandwagon blurple LED user? Technology has evolved in the last 5-10 yrs.. blurple are at most equivalent to HPS if not worst when you look at power draw (and not false claim) maybe you used a mars hydro or vipar spectra or any other generic model.. yes the truth is if you got X amount with 600w hps youll get the same amount from 450w quality LED its just a fact.. I see you are talking about light penetration.. to my knowledge that is a myth or one of the theory without really proof of existance..
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a mongo frog
Well-Known Member
way less
Its the fact that LED's are many lights on one board. Each diode, cob, or whatever, can only shine so far. Watts and PAR, go hand in hand. Cant have one without the other.
Thats why, a single bulb travels so much further. Same as the sun.
Imagine a single 1000watt cob? OMFG. It'd be damn impractical, but fuck it would shine far.
Unfortunately physics doesnt really lie. Not when it comes to light, and distances.
Ignorance is bliss.
Viceman666
Well-Known Member
Im far from being an enginer but what youre saying is that both hps and led (regardless the watts comparable is).. if both have the same ppfd at the canopy.. what you are saying is the hps willgo deeper in the canopy how is that? I have been told so many times about the inverse square law rules that your explanation dont seem to go in line with that.. yes at the exact same distance from the canopy the hps would have better penetration (more power from one point) but also a ppfd spike or hot zone) however this statement doesnt acknowledge the fact that led will be put closer the canopy and thus should have roughly the same penetration
Yes. Its what i mean.
If the canopy, is PAR for PAR.
LED loses PAR much faster, below the canopy. Which limits the ways in which, you can grow.
I just love the freedom, and easy use, HID can provide.
Im so excited for LED. Truly.
But until i can get the same freedom from a factory made unit, thats ready to go. Im just not gonna budge.
For beginners too, LED can be an absolute disaster. We've all seen it.
jarvild
Well-Known Member
I'm sure I made no references to penetration. And my lights were all purchased in the last 4 years.
CCCmints
Well-Known Member
Why make statements without backing them?Yes. Its what i mean.
If the canopy, is PAR for PAR.
LED loses PAR much faster, below the canopy. Which limits the ways in which, you can grow.
I just love the freedom, and easy use, HID can provide.
Im so excited for LED. Truly.
But until i can get the same freedom from a factory made unit, thats ready to go. Im just not gonna budge.
For beginners too, LED can be an absolute disaster. We've all seen it.
What has led you to believe this? With proper uniformity, you have smaller PAR spikes, with greater overall PPFD than HPS can provide (even with the massive PAR spikes being added to the equation). Meaning you can place your lights closer to the plants, resulting in better penetration. I don't see how someone could logically conclude HPS has better penetration when its a fact that you cannot place an HPS light as close to your canopy as you could an LED with good uniformity.
Closer to the canopy = better penetration
That's what science tells us. What tells you HPS provides better penetration?
Yes but you have to put them closer.Why make statements without backing them?
What has led you to believe this? With proper uniformity, you have smaller PAR spikes, with greater overall PPFD than HPS can provide (even with the massive PAR spikes being added to the equation). Meaning you can place your lights closer to the plants, resulting in better penetration. I don't see how someone could logically conclude HPS has better penetration when its a fact that you cannot place an HPS light as close to your canopy as you could an LED with good uniformity.
Closer to the canopy = better penetration
That's what science tells us. What tells you HPS provides better penetration?
If you're in a 7 foot tent thats a problem. You may have 2 feet of canopy, but what about underneath?
You're severely hight restricted with Led.
How would you go with a 12 foot ceiling, and 10 foot plants? Hows the yield gonna be further down?
Honestly?
If PAR is the same at canopy, hps wins.
Why you reckon they never say the penetration is better than hid? They just say "better penetration" meaning in comparison to other LED's.
Its damn clever marketing.
False advertisement is a crime after all.
I can have my 600watt, a foot from my canopy.
A thousand watt needs 3 feet. Thats why a 600watt gives more PAR than a 1k.
Why you reckon they never say the penetration is better than hid? They just say "better penetration" meaning in comparison to other LED's.
Its damn clever marketing.
False advertisement is a crime after all.
I can have my 600watt, a foot from my canopy.
A thousand watt needs 3 feet. Thats why a 600watt gives more PAR than a 1k.
But not for a large plant. Then a 1kw trumps a 600watt.
Better penetration.
Same again.