In my opinion, LED light is better than HPS light

nc208

Well-Known Member
Wow! Is this an advert, or a warning?
Warning, stay away. stay far far away. I bought some flexible Red and Blue LED smd strip lights from this company just a simple 5 - 1 ratio of red and blue low powered LEDS. Damn thing crapped out after 3 months at only 12 hours a day. The company uses garbage components.
 

Roche Mars

Member
Warning, stay away. stay far far away. I bought some flexible Red and Blue LED smd strip lights from this company just a simple 5 - 1 ratio of red and blue low powered LEDS. Damn thing crapped out after 3 months at only 12 hours a day. The company uses garbage components.
Are u sure your light is Roleadro?
 

Rider509

Well-Known Member
"OK, that's all the thing I got for you guys. Thank you for your watching."
I don't know... it's only a guess, but I don't think Christina is her real name.
 

theinhibitor

Well-Known Member
LED vs HPS, the classic argument about nothing...

LED's have better spectrum but lack penetration power (or they scale more sharply with distance) (and this is as of now with the usual 3w-6w cree chips). That's basically it. I use both and the plants love it. Who cares about efficiency INDOORS anyways. If you did, you would grow outdoors in the sun.

And if its 'too cold/hot to grow outdoors', then grow in a greenhouse. If the Israelis can do it, so can you.
 

Abiqua

Well-Known Member
LED vs HPS, the classic argument about nothing...

LED's have better spectrum but lack penetration power (or they scale more sharply with distance) (and this is as of now with the usual 3w-6w cree chips). That's basically it. I use both and the plants love it. Who cares about efficiency INDOORS anyways. If you did, you would grow outdoors in the sun.

And if its 'too cold/hot to grow outdoors', then grow in a greenhouse. If the Israelis can do it, so can you.
They lack penetrating power?

So if you had 300 ppf from the LED and 300 ppf from HID, you are saying there is a difference....I mean if one is different by 50 ppf or so, okay I get the comparison, which wouldn't be fair to begin with....maybe there is a reason that penetration is less....like Actual Output aka watts.....or better yet, photon to photon.....

Then we have to begin to take account genetics into it and environment....in short, I just think you made your predicitions a little too early.....
 

theinhibitor

Well-Known Member
They lack penetrating power?

So if you had 300 ppf from the LED and 300 ppf from HID, you are saying there is a difference....I mean if one is different by 50 ppf or so, okay I get the comparison, which wouldn't be fair to begin with....maybe there is a reason that penetration is less....like Actual Output aka watts.....or better yet, photon to photon.....

Then we have to begin to take account genetics into it and environment....in short, I just think you made your predicitions a little too early.....
Lack penetration power, as in, they lose power more quickly over distance than HPS, so LED is more prone to light distance issues. Of course, if you were to measure at 1" away from bulb, then yeah they are probably the same or LED might win, but at 2 feet LED will not have as much power as HPS. I believe the units would be photon flux, or photons per area per unit time. And this is assuming the usual 3w chips, I now have 6w chips and have not tested this. Configuration of LEDs would also have a significance.

It could also be the throw angle of the chips themselves (all LED chips have a cone of light emitted at an included angle which can literally be about everything under 180 degrees) and the light pattern of the LED panel itself.

Another reason why its an argument about nothing...its honestly too apple vs orange. CMH vs HPS would be a better comparison since they are both tubes of a singular light source.

Not that it matters much, but the top growers I know are all HPS indoor, with supplemental LED's. I myself use both, and use LED solely in veg (white LEDs, not this weird purplish crap I see).
 

ttystikk

Well-Known Member
LED vs HPS, the classic argument about nothing...

LED's have better spectrum but lack penetration power (or they scale more sharply with distance) (and this is as of now with the usual 3w-6w cree chips). That's basically it. I use both and the plants love it. Who cares about efficiency INDOORS anyways. If you did, you would grow outdoors in the sun.

And if its 'too cold/hot to grow outdoors', then grow in a greenhouse. If the Israelis can do it, so can you.
This is complete bullshit. Everyone running LED cares about efficiency, as well they should. Penetration is a bullshit concept, and nearly everyone uses multiple LED lights which give better coverage in every way.

You sound like you don't know WTF you're talking about, possibly due to lack of personal experience.
 

SonsOfAvery

Well-Known Member
Lack penetration power, as in, they lose power more quickly over distance than HPS, so LED is more prone to light distance issues. Of course, if you were to measure at 1" away from bulb, then yeah they are probably the same or LED might win, but at 2 feet LED will not have as much power as HPS.
I could be wrong, but I don't believe that LED light looses power more quickly than HPS. If we are comparing equally powerful lights, a photon is a photon, carrying the same amount of energy as any other. (In the spectrums of light we are referring to.)

Also, with LEDs running cooler than HPS, it means that your plants can be closer to the source, which would mean equal if not greater penetration.
 

ttystikk

Well-Known Member
I could be wrong, but I don't believe that LED light looses power more quickly than HPS. If we are comparing equally powerful lights, a photon is a photon, carrying the same amount of energy as any other. (In the spectrums of light we are referring to.)

Also, with LEDs running cooler than HPS, it means that your plants can be closer to the source, which would mean equal if not greater penetration.
Penetration is what you do with your girlfriend, there is no such concept in lighting.

Instead, there are two other concepts that more accurately describe how light works in relation to a canopy.

Intensity; this is a measurement of how much light is being radiated from a given light source. It's measured in umol.

Distribution; this describes how evenly light is spread across a canopy. A powerful single source like an HID lamp does poorly in this regard because so much intensity is delivered to the South directly beneath it, but edges and corners are left in comparative darkness.

LED light fixtures are designed around multiple light sources, and print circuit board based LED lights like Quantum Boards are distributed even more wisely, with clear and beneficial results over single point sources.

These explain why LED lights give such great results over real world canopies.
 

SonsOfAvery

Well-Known Member
Penetration is what you do with your girlfriend, there is no such concept in lighting.

Instead, there are two other concepts that more accurately describe how light works in relation to a canopy.

Intensity; this is a measurement of how much light is being radiated from a given light source. It's measured in umol.

Distribution; this describes how evenly light is spread across a canopy. A powerful single source like an HID lamp does poorly in this regard because so much intensity is delivered to the South directly beneath it, but edges and corners are left in comparative darkness.

LED light fixtures are designed around multiple light sources, and print circuit board based LED lights like Quantum Boards are distributed even more wisely, with clear and beneficial results over single point sources.

These explain why LED lights give such great results over real world canopies.
That is a much better explanation than I gave, thank you.

And with all this talk of penetration, I wondered how long it would take for a dick joke :P
 
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