Commercial LED lights

Abiqua

Well-Known Member
if thats the case, then from here on out, EVERYONE, stop measuring Par, because its meaningless.

So, whats meaningfull to YOU.? U going to come with fancy BS words like efficacy, efficiency, 2x56hSqar*2Nhm BS?

Explain how these numbers are meaningless, but across the board, everyone measures PAR.

If i said LUX, i see your point, but we're not.

but then again, your an advertiser, your supposed to dog out and destroy people that dont use YOUR product line or brand. I see ya.
Calm down a little, admittedly they didn't lay it out...
Par or PPF is the measure of all light [photons:radiometrically] per second umol/s,

PPF/D is in a Square meter of space but the same umol/s^2.....

A single reading like you mentioned doesn't account for all photons per second of that fixture, just a narrow area where those diodes may be more powerful than say diodes on the outside that aren't measured in the "spot" reading..., so it is completely innacurate and would be also technically different for Kelvin temps as Blue waves give off more photons per/w than Red waves, so we need an accurate way to determine ALL light.....does that make any sense?

This method is used for all types of light, not just LED's......... :joint:
 
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InTheValley

Well-Known Member
Calm down a little, admittedly they didn't lay it out...Par or PPF is the measure of all light [photons:radiometrically] per second umol/s, PPF/D is in a Square meter of space but the same umol/s^2.....A single reading like you mentioned doesn't account for all photons per second of that fixture, just a narrow area where those diodes may be more powerful than say diodes on the outside that aren't measured in the "spot" reading..., so it is completely innacurate and would be also technically different for Kelvin temps as Blue waves give off more photons per/w than Red waves, so we need an accurate way to determine ALL light.....does that make any sense?

This method is used for all types of light, not just LED's......... :joint:
Yeah, i understand that. Alllll im saying is, he took the same points measments from areas on the floor for each light. Center, 1ft out 2 ft out from all sides. with the same meter. and the PSGoliath did better then the 1000w by 60 average PAR.

Yes, the goliath does have more greens and yellows, so yes, it will register a higher number somewhat, but in the realm of things, the plant uses those colors, where-as the 1000w HPS doesnt even have those nms to begin with. It has no green, which is proven to be needed from the plant for better CO2 uptake and such.

So, in a sense, Neils spectrum is superior to the 1000w just in that retrospect alone. The center par value almost doubled that of the 1000w. and still carried 35-40% higher to the edge of the footprint.

*shruggs, IDK bro, Its not really that big of a deal.

At the end of the day, you can use shit genetics, shit products, shit atmosphere conditions, shit water, shit timing, and NEITHER will produce well, agreeable?

and, ive seen readings from 1000w HPS, the par drops off considerably past 24inches, where as Neils lights dont.

Ill tell ya this. I have great genetics (Fire OG), great Nutes (megaCrop), "great"light (PSmini), in coco, in a 2x2 and I bet I pull 2:1 with this light.
 

InTheValley

Well-Known Member
dude, i didnt disrespect knowledge, i just stated the info presented to me thru videos man. and I did read the ENTIRE read you posted.

and, i can also tell you, thru building my own diode light, it was great at 42 inches that i had to keep it at, and would of blew a 250watt HPS outta the water with 125watts.

and i present myself as a know-it-all by stating shit i watched, and conveyed to a forum, smh..

Your tellin me to calm down, but your the one jumpin on me, lol..
 

BuddyColas

Well-Known Member
Bro, can we please stop using PPF as a measurement of light. Your supposed to use the back of your hand,
Im trying to help you here. IMO if a seller does not state PPF and umoles/joule they are really not a contender. Dont listen to the hype and snake oil.
 
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InTheValley

Well-Known Member
he does, im looking for it. I know he has the ppfd for the PS1000 which was 1200 in the center i think it was.

the average par for goliath was 610 par, and the 1000w was 570 par over 7 different points of reference.
 

InTheValley

Well-Known Member
I changed the diodes, i put in 26pc 4000k - 3w diodes, 6pc fullspectrum-3w diodes, took out all the blues, and some reds. and then put in 120degree lenses.

i was getting 70,000 lux at 24inches, my DIY par meter read 1340 par.

If i didnt change the diodes and kept the factory diodes, the par was 1470 at 18inches with just the lens mod. Yes, the footprint was like 8 inches, but raising it spread it out pretty good.

the mars300 is factory at 315 par at 18inches
 

InTheValley

Well-Known Member
here is 43 days from seed, (yes, i labeled pic at 40, wrong day)
but still, thats a mars300. half the light went dead on me. I went thru and tested the diodes and found some of the resistors failed. When i make mine, Im running them on CV and controllable voltage to dim. That was important and wish i could do with my modded mars.

i put foil around the light to direct it more straight down, and i had a par of 1100 at 36inches,lol. it was something outrageous,

Instead of buying the mini, I should of just bought 4 more mars300 and changed them like i did before, but dimming was needed.

I am gettin a tad pissy because I ordered it on monday, and i still dont have a dam tracking number. so thats kinda getting annoying. Im about to cancel it, and just build my diode light myself to be honest.
 

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InTheValley

Well-Known Member
cool


That's great, I am glad your using the forums. Specs? Diodes, drivers, current your running?



I might not, but someone will finally beat it into your head that your thick and the more ignorant pushback you give.......what else would you use other than PPF?
i meant, I DIDNT try to present myself as a know it all, lol..
 

InTheValley

Well-Known Member
cool


That's great, I am glad your using the forums. Specs? Diodes, drivers, current your running?



I might not, but someone will finally beat it into your head that your thick and the more ignorant pushback you give.......what else would you use other than PPF?
I thought you seen my strip light i built? with smd ebay strips. I was referring to my modded mars above.

My strip light is pretty dang cool, i have to admit. Shitty strips, lol, but they are changeable. But im going to tear all those out, and use the same shell for the mono diode build. Just not diggin the smd chips. I was going to order 6pc of the QB120s, but they never EVER have them.
 

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InTheValley

Well-Known Member
So if PPF is not the correct measurement, what is?
Abiqua, I was saying PPF was the numbers I had for the light, and I was told PPF didnt mean shit. I never said PPF wasnt a measurement to use. I think your referring to when i told dude, SARCASTICALLY that PPF wasnt a good measurement, because i was just blasted for referrancing PPF numbers for the Goliath VS the 1000w HPS.
 

st0wandgrow

Well-Known Member
Alright, school me here fellas. Came home from work and filled the wife in on some of the feedback and lights that you guys have recommended. She has apparently been looking through Amazon at some really cheap options like this:

https://www.amazon.com/BESTVA-1000W-Spectrum-Greenhouse-Hydroponic/dp/B01871AHTC

Please explain to me, so that I can explain to her, why that Amazon light is so much cheaper, and the difference in the end product between some of the higher end lights you all have recommended compared to a cheaper light.

Sorry for the stupid questions, but I am a noob when it comes to LED’s and I would like to be able to explain to her why a $128 LED will not be a good purchase.
 
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