W
Wariat
I would like to share with you something that I discovered in my research.
Basically, im noth a mathematician, so instead of equations, it will be based on logical thinking and observations. If some sick mind whant to refute what i write here, i will be even more happy because i will learn something new
Theoretically, the only thing that can limit my crop size, is power of used lights. So what is logical, I decided to find the best of the best.
When I read all the shit about PAR, lux and lumens, I started to compare 600W hps bulbs.
It was some serious shock.... how stupid I was, when I thougt than more lumens means more yield etc.
Light producing companies are adding yellow spectrum because its more visible for human eye, and mark bulb with SUPER HIGH LUMEN shit !!! Dont be fool, this is why lumens mean nothing !!!
In support of this, I will show you comparison of spectral color distribution by different bulb on the market.
This is graphical analysis of PAR, which show you which ranges of light wavelenghts are most important for horticultural.
As you can see, most important light is from range of 400 to 530 nm, and from 620 to 720 nm.
Red light is desirable for flowering stage, because it makes our buds bigger and tighter, and blue light is most important for vegetative (growing) stage. I would not evaluete here whether the blue spectrum is needed for flovering too, because as I say im not a scientific, but when i revieve some grow diares, it was clear to see, that more blue spectrum light such as CMH, resulted in two things:
~ Healthier looking plants
~ Leaffy, small and lightly packed buds.
As the first thing is desirable, second not really...
So now, when you can compare yourself utility of different bulbs,
LET THE SHOW BEGIN
I decided to compare 4 most popular 600W hps bulb. At the begining there were five, but due to transparency of diagram, i decided to reject Philips SON-T PIA greenpower, because it fared miserably in relation to other.
No i haven't. I did this on the basis of manufactures graphs. I read alot about wrong scale on this graphs, etc.
But when you look at them precisely, there are acouple similaritys in each one.
So I increased size of this graps by 1100 %, analyzed it, and i fits it all into one whole.
As I say eariler, im not a mathematics, so i taked couple of reference points in this graph's, which apear to be at the same level in each spectrum graph, and in relation to that, i make this chart.
I hope its good enough to help somebody.
Basic spectrum graphs :
══════════════════════════
● Philips Master Son-T Pia Plus ●
● HORTILUX SUPER HPS EN ●
● Osram Plantastar ●
● SUNMASTER SuperHPS Deluxe ●
►►► BULBS SPECTRUM DIAGRAM ◄◄◄
Basically, im noth a mathematician, so instead of equations, it will be based on logical thinking and observations. If some sick mind whant to refute what i write here, i will be even more happy because i will learn something new
Theoretically, the only thing that can limit my crop size, is power of used lights. So what is logical, I decided to find the best of the best.
When I read all the shit about PAR, lux and lumens, I started to compare 600W hps bulbs.
It was some serious shock.... how stupid I was, when I thougt than more lumens means more yield etc.
Light producing companies are adding yellow spectrum because its more visible for human eye, and mark bulb with SUPER HIGH LUMEN shit !!! Dont be fool, this is why lumens mean nothing !!!
In support of this, I will show you comparison of spectral color distribution by different bulb on the market.
This is graphical analysis of PAR, which show you which ranges of light wavelenghts are most important for horticultural.
As you can see, most important light is from range of 400 to 530 nm, and from 620 to 720 nm.
Red light is desirable for flowering stage, because it makes our buds bigger and tighter, and blue light is most important for vegetative (growing) stage. I would not evaluete here whether the blue spectrum is needed for flovering too, because as I say im not a scientific, but when i revieve some grow diares, it was clear to see, that more blue spectrum light such as CMH, resulted in two things:
~ Healthier looking plants
~ Leaffy, small and lightly packed buds.
As the first thing is desirable, second not really...
So now, when you can compare yourself utility of different bulbs,
LET THE SHOW BEGIN I decided to compare 4 most popular 600W hps bulb. At the begining there were five, but due to transparency of diagram, i decided to reject Philips SON-T PIA greenpower, because it fared miserably in relation to other.
No i haven't. I did this on the basis of manufactures graphs. I read alot about wrong scale on this graphs, etc.
But when you look at them precisely, there are acouple similaritys in each one.
So I increased size of this graps by 1100 %, analyzed it, and i fits it all into one whole.
As I say eariler, im not a mathematics, so i taked couple of reference points in this graph's, which apear to be at the same level in each spectrum graph, and in relation to that, i make this chart.
I hope its good enough to help somebody.
Basic spectrum graphs :
══════════════════════════
● Philips Master Son-T Pia Plus ●
● HORTILUX SUPER HPS EN ●
● Osram Plantastar ●
● SUNMASTER SuperHPS Deluxe ●
Winner is EYE Hortilux Super HPS
It has a lower power spectrum in range of 570 - 590nm, but lock how much power is in range of 630 - 690 nm and in range of 400 - 500nm. I believe now, that this bulb have HIGHEST PAR level on the market.
If you dont want blue spectrum in flower, then the best choice is Philips son-t pia plus, but it still has less power in red spectrum.
As you can see, ushio has less power in range of 625 - 660nm, but have more power in range of 660 - 720nm which is more PAR range.
Also, ushio has much more power in range of 450 - 500nm range.
So USHIO HI-LUX Super HPS is definitely our new leader
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
I am sure that many people accuse this test lack of precision, but if you say that, than buy some spectroradiometer, and show us more accurate details.
So far there was no subjective comparison of hps bulbs on icmag. Evereybody said, what they fell, or what they observed, but i think that horticulture is based on so many factors, then somethimes small change in enviroment, may cause serious changes in yield/potency.
In sum, i feel that it helped to me in choosing what bulb to buy, and im really hope, that this will help you to.
If you want, to compare any other bulb to this what ive done, post spectrum graph in this thread, and I will upgrade this diagram.
Good luck and be safe
It has a lower power spectrum in range of 570 - 590nm, but lock how much power is in range of 630 - 690 nm and in range of 400 - 500nm. I believe now, that this bulb have HIGHEST PAR level on the market.
If you dont want blue spectrum in flower, then the best choice is Philips son-t pia plus, but it still has less power in red spectrum.
Edited
In order to Snagglepeus post, i compare winner of first competition, with his favourite wich is :
USHIO Hi-Lux GRO SUPER High Pressure Sodium
And im glad to say, that we have neaw lider
Basic spectrum graph :
══════════════════════════
►►► BULBS SPECTRUM DIAGRAM ◄◄◄
In order to Snagglepeus post, i compare winner of first competition, with his favourite wich is :
USHIO Hi-Lux GRO SUPER High Pressure Sodium
And im glad to say, that we have neaw lider
Basic spectrum graph :
══════════════════════════
►►► BULBS SPECTRUM DIAGRAM ◄◄◄
As you can see, ushio has less power in range of 625 - 660nm, but have more power in range of 660 - 720nm which is more PAR range.
Also, ushio has much more power in range of 450 - 500nm range.
So USHIO HI-LUX Super HPS is definitely our new leader ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
I am sure that many people accuse this test lack of precision, but if you say that, than buy some spectroradiometer, and show us more accurate details.
So far there was no subjective comparison of hps bulbs on icmag. Evereybody said, what they fell, or what they observed, but i think that horticulture is based on so many factors, then somethimes small change in enviroment, may cause serious changes in yield/potency.
In sum, i feel that it helped to me in choosing what bulb to buy, and im really hope, that this will help you to.
If you want, to compare any other bulb to this what ive done, post spectrum graph in this thread, and I will upgrade this diagram.
Good luck and be safe
