Ethos Banana Hammock comparative(exodus thread)

Moabfighter

Moabfighter

Well-Known Member
Smokexbreak said:
You take the time that you just used typing this post to email mars? Probably would have been less characters.

Then get on HLG’s website and look up your light and figure out the diodes. And then I’d be able to help at least on the QB’s. I can’t help on the mars hydro because we don’t know the conversion factor until we know that we are no help.

But we’ve been through this on this very thread already.
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9B3F9C60-9F5C-4AA9-A1B2-83E649BF7C09.png

Here’s what mars provides. People are supposed to do everything you said to figure out where to hang their light? Alrighty man.
 
Or_Gro

Or_Gro

Well-Known Member
61falcon said:
Don’t know if this helps you.
No idea on the Mars, but
I have 4 qb132v2’s 3500k in a 3x3 and devide lux by 70 to get ppfd. I have this documented (heights,watts,lux/ppfd)in my journal as it’s my 1st grow in 20 yrs.
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You’re doin great, he’s talkin blurple, which doesn’t measure well w a lux meter...
 
Or_Gro

Or_Gro

Well-Known Member
Moabfighter said:
Divide lux *****x100 on my meter?***** by 70? Okay. Then I’ll need to also incorporate that mars hydro lux/ppfd still don’t know correct terms here sorry.....

So what’s the trade off to pull that off? If I have x ppfd of quantum and x ppfd of mars hydro, add those two, and if my number is higher than plants need, raise lights until I reach lower lux/ppfd?
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As i’ve said a couple time (like a bunch of other important shit) throughout this thread, you can’t use a lux meter with blurples and get accurate info...google for why if you really want to know...
 
iceman2494

iceman2494

Well-Known Member
Or_Gro said:
As i’ve said a couple time (like a bunch of other important shit) throughout this thread, you can’t use a lux meter with blurples and get accurate info...google for why if you really want to know...
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Is the th (or whatever)a blurp? Thought it was a white led or something.
 
61falcon

61falcon

Well-Known Member
Or_Gro said:
You’re doin great, he’s talkin blurple, which doesn’t measure well w a lux meter...
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Yeah I remember reading somewhere the a lux meter won’t work with blurple’s. If he is in a 3x3 probably just run the qb132’s they will do the job. I ran mine at 106 watts at hieghts 60” down to 20” up until day 27.
 
Or_Gro

Or_Gro

Well-Known Member
3rd Monkey said:
You're always going to face adversity. That's nothing new. There's what you think is right, then there's what the system tells you is right. You either compromise and break yourself to conform to a system, or you stand your ground against that system, knowing full and well the repercussions of your defiance. This is war. You're still picking a side.

There are no winners in war, just survivors.
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Imo, that’s way too harsh...you figure out what works, and go with it....sometimes you bend to get around obstacles...

but, in the end, it comes down to doing your homework, making an informed choice, and accepting responsibility for your decisions and actions....
 
3rd Monkey

3rd Monkey

Well-Known Member
Moabfighter said:
I mean..... you would THINK. It’s like a camera right? Light is beaming on plant. That eye is reading what “rays” are hitting the leaf surface?

Kinda try to just use Occam’s razor alot
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Occam's razor would have implied that when measuring lights.... measure the lights lol.
 
Moabfighter

Moabfighter

Well-Known Member
3rd Monkey said:
Occam's razor would have implied that when measuring lights.... measure the lights lol.
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Not measure the light quantity hitting plants? My lights 120 watts bro. Whatever. What comes out of it doesn’t change. What I’m trying to know is how high/low to put it from my plant flesh, right?
 
3rd Monkey

3rd Monkey

Well-Known Member
Or_Gro said:
Imo, that’s way too harsh...you figure out what works, and go with it....sometimes you bend to get around obstacles...

but, in the end, it comes down to doing your homework, making an informed choice, and accepting responsibility for your decisions and actions....
Click to expand...

Sounds like you said the same thing, just nicer lol.
 
3rd Monkey

3rd Monkey

Well-Known Member
Moabfighter said:
Not measure the light quantity hitting plants? My lights 120 watts bro. Whatever. What comes out of it doesn’t change. What I’m trying to know is how high/low to put it from my plant flesh, right?
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Right. You want target ppfd on foliage. Whatever height that takes you to.
 
Smokexbreak

Smokexbreak

Well-Known Member
Alright @Moabfighter

I’m going to try and help here.

First we will deal with the QB’s are yours 3500k as well? Because if so your conversion factor is 70.

Take your lux*100 then divide it by 70 to get your PPFD. If it’s not the 3500k then you have to get on HLG website and figure out the diodes on your board so we can figure out the conversion factor.

Second no one here knows the conversion factor of the mars and instead of using their mapping and doing these tests to figure out what it is your time would be better spent emailing mars and figuring out your conversion factor. Otherwise it’s going to take you a lot more time and effort trying to compare and contrast.

Now PPFD

PPFD
PPFD is photosynthetic photon flux density. PPFD measures the amount of PAR that actually arrives at the plant, or as a scientist might say: “the number of photosynthetically active photons that fall on a given surface each second”. PPFD is a ‘spot’ measurement of a specific location on your plant canopy, and it is measured in micromoles per square meter per second (μmol/m2/s). If you want to find out the true light intensity of a lamp over a designated growing area (e.g. 4’ x 4’), it is important that the average of several PPFD measurements at a defined height are taken. Lighting companies that only publish the PPFD at the center point of a coverage area grossly overestimate the true light intensity of a fixture. A single measurement does not tell you much, since horticulture lights are generally brightest in the center, with light levels decreasing as measurements are taken towards the edges of the coverage area. (Caveat Emptor: Lighting manufacturers can easily manipulate PPFD data. To ensure you are getting actual PPFD values over a defined growing area, the following needs to be published by the manufacturer: measurement distance from light source (vertical and horizontal), number of measurements included in the average, and the min/max ratio). Fluence always publishes the average PPFD over a defined growing area at a recommended mounting height for all of our lighting systems.

Your PPFD is basically a measurement of intensity. It’s measured in uMol per meter squared.

To get your PPFD you need to know your conversion factors to be able to use it with your lux meter to get your
Numbers. Until you get the number from mars you’ll have a hell of a time trying to spitball your numbers for the mars light.
 
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