CFL vs HPS penetration

ROC1977

Well-Known Member
This topic is a heated one isn't it. Every forum I look at its HPS v CFL. Xbox or Ps3, Sega or Nes. Guinness or Beamish.

lol never mind me...:eyesmoke:
 

Brick Top

New Member
I think more a hall and oates concert

"private eyes... watching you..."

Hall & Oates might in fact be more fitting in that some of the rage being exhibited here by the mouth breathers could possibly be the result of the rechanneling of anger and frustration due to pent up latent homosexual tendencies so the somewhat dubious sexuality of Hall & Oates might in fact be a better fit for what I previously wrote.

Thank you for mentioning them.
 

Greyskull

Well-Known Member
i wish i didn't 'cause that fucking song is in my head now....

ahh.... hits play on my Lateralus CD....
"Saturn comes back around. Lifts you up like a child or
Drags you down like a stone
To consume you till you choose to let this go."

way more like it
 

AeroKing

Well-Known Member
This topic is a heated one isn't it.
I got pissed because TeaTreeOil quoted me out of context and tried to make me sound like I don't know what I'm talking about.

I'd never down anybody for using CFLs. You just need to realize your application. Roseman has some awesome grows using CFLs in reflectors pointing all over his plants.

However, for our real-world application, you'd have to be a damned retard to think that you can get the same penetration of light through a canopy from multiple small sources of light vs. one source of light with the same output.

I'd hate for some newb out there to be reading his posts and then show up here wondering why he's getting so much bullshit popcorn nug and stragly growth from his CFLs, because TeaTreeOil said that they'd work just as well. Get real....
 

Brick Top

New Member
I got pissed because TeaTreeOil quoted me out of context and tried to make me sound like I don't know what I'm talking about.

I'd never down anybody for using CFLs. You just need to realize your application. Roseman has some awesome grows using CFLs in reflectors pointing all over his plants.

However, for our real-world application, you'd have to be a damned retard to think that you can get the same penetration of light through a canopy from multiple small sources of light vs. one source of light with the same output.

I'd hate for some newb out there to be reading his posts and then show up here wondering why he's getting so much bullshit popcorn nug and stragly growth from his CFLs, because TeaTreeOil said that they'd work just as well. Get real....

In my case I simply have a low tolerance level for those who repeatedly exhibit sheer ignorance.

What compounds that is when they attempt to hide their ignorance in a flood of Wiki C&P’d information and irrelevant information and when you refute what they say they then come at you like they have been bitten by a Benzedrine puff adder, which tends to raise some people’s hackles.

The icing on the cake is the thought that someone new to growing or still inexperienced at growing will take the horrible inaccurate advice of someone who obviously knows little more than they do but nonetheless will attempt to portray themselves as being expert on anything and everything grow related.
 

9inch bigbud

Well-Known Member
say no more




top left CFL top right HPS

picture on the bottom plant on the left is HPS the plant on the right CFL both at 57 day flower one under 400w HPS and under 2 x 200w CFL lights plants are from the rooms above
 

ROC1977

Well-Known Member
cool. A spanner in the works! lol

I like to flame on forums too when people talk out of the arse's'.But not on this one I'm a new to growing. So I'm just taking it all in, and only giving my input on my own limited experience.
Which at the moment stands at about 45 days of actual growing,and a few weeks or months reading guides.

So any of you CFL growers want to check out my journal and give me a few tips. Please do.

And maybe after this grow if I'm not happy with it. And if I have a bit of cash I might upgrade my area with a HPS.
My grow area is in a home office/gaming area/home cinema (coming soon) which is detached from my house. It has plumed water, sink, shower, and toilet. Which comes in handy for res changes. "Outback" which I like to call it also has its own fuse board.

....I'm rambling off topic again. My mind wonders sometimes! lol

Anyway back to topic. What about the Enirolite Purple. Guy in my hydro shop thinks they are great. Both for veg and flowering. He said they have the perfect K for plant growth, and usable light. etc etc etc.
Better than CFL, dare I say beter than....hps?

lol
 

nickfury510

Well-Known Member
this friggin site is going to shit latley with all these cfl growers spending half their waking moments on formulas and equations why on paper cfl is supposed to be better.....but the funny thing is they all switch to hid once they see the fliffy little shitty buds that cfls produce or when they realize that 50 cfls adjusted to sit at just the right spot becomes way more maintenance and trouble for the fluffy little buds.

and wtf is this shit im reading all over that 1 or 2 plants in a closet with cfls doesnt need fans or ventilation...cmon people quit given advice until you have a few succesful grows under your belt....no air needed...wtf is wrong with some people.....


sorry...just had to vent......
 

zolar

Active Member
the issue isn't cfl vs hps or mh its probably heat and space if you have a flat canopy scrog in a little space with heat issues cfl would be better for that application but penetration is a diffusion and distance issue and those formulas look nice on paper and i have compared my cfl cab with my MH/HPS with a light meter and although actual footcandles of light are the same in both cabs at the proper measuring points ther is a difference in plant growth between the cabs when heat and volume are not limiting factors go with HPS/MH..... but remember a photon is a photon is a photon and when i actually start seeing nuymbers from growers in micro einsteins then we can accurately compare thos e apples and oranges
 

9inch bigbud

Well-Known Member
this friggin site is going to shit latley with all these cfl growers spending half their waking moments on formulas and equations why on paper cfl is supposed to be better.....but the funny thing is they all switch to hid once they see the fliffy little shitty buds that cfls produce or when they realize that 50 cfls adjusted to sit at just the right spot becomes way more maintenance and trouble for the fluffy little buds.

and wtf is this shit im reading all over that 1 or 2 plants in a closet with cfls doesnt need fans or ventilation...cmon people quit given advice until you have a few succesful grows under your belt....no air needed...wtf is wrong with some people.....


sorry...just had to vent......
I know just look at this post about CFL's hes only using 149w CFL and he is 80f if he used a cool tube and a 250w he would run the cab cooler. https://www.rollitup.org/grow-room-design-setup/173152-mounting-lights-heat-issues-please.html
 

Mcgician

Well-Known Member
What strain(s) is that? Looks good man. Nice job.

Only thing is, you have 16 plants in soil containers in one 4ft X 4ft area? Damn, that's a lot of plants for such a small area. Nice yield per plant too.

nice cant beat HPS

veged 7 days from cutting soil 16 plants 4 x 4 area under 1000w avarge yeild per plant 2.1/2oz




id like to see that done under CFL's
 

9inch bigbud

Well-Known Member
What strain(s) is that? Looks good man. Nice job.

Only thing is, you have 16 plants in soil containers in one 4ft X 4ft area? Damn, that's a lot of plants for such a small area. Nice yield per plant too.
its an old sensi super skunk its a good yeilder and finished in 45 days. 10L pots plant finish around 30" i can fit 5x5= 25 pots in there and just grow the main cola would have worked out even more.
 

Greyskull

Well-Known Member
SOG growing w/trees instead of lil lollipops.... I like your style.
shit I wish I could get my pre98 bubba & SDxSB to yeild huge w/minimal veg... I gotta veg them for 3-4 weeks to get them multi-topped and 18" tall to have them squeeze out 35g per.... 20 8"pots per 4x4.... i wish ChemD rooted faster....
 

TeaTreeOil

Well-Known Member
I got pissed because TeaTreeOil quoted me out of context and tried to make me sound like I don't know what I'm talking about.

I'd never down anybody for using CFLs. You just need to realize your application. Roseman has some awesome grows using CFLs in reflectors pointing all over his plants.

However, for our real-world application, you'd have to be a damned retard to think that you can get the same penetration of light through a canopy from multiple small sources of light vs. one source of light with the same output.

I'd hate for some newb out there to be reading his posts and then show up here wondering why he's getting so much bullshit popcorn nug and stragly growth from his CFLs, because TeaTreeOil said that they'd work just as well. Get real....
I quoted you in context.

You don't know what you're talking about.

you'd have to be a damned retard to think that you can get the same penetration of light through a canopy from multiple small sources of light vs. one source of light with the same output.
The real 'retards' think exactly like you. :lol:

Why do cell phone companies put up multiple cell phone towers? Why not just one big one, or one in space? Why are there multiple satellites and satellite dishes? Barring all bullshit! The answer is efficency and feasibility.

Explain why using a mirror and causing reflection of light onto an already lit surface and it becomes brighter using the same light source?

Why can one light be concentrated upon itself, but you think that doubling the light. Or watts. Or joules. Doubling the amount of work done some how doesn't double output? This is grade A retarded thought, to put it in terms you seem to understand.

---

The amount of energy a wave delivers to a unit area in a unit time is referred to as its intensity, I.
Equivalently, since power is energy per time, the intensity of a wave is the power per unit area. Imagine, for example, an electromagnetic wave of area A moving in the positive x direction. In the time t the wave moves through a distance c*t; hence, all the energy in the volume V = A(c*t) is deposited on the area A at this time. Since energy is equal to the energy density times the volume, it follow that energy in the volume V is U = u*V.

--

Each bulb has a specific volume it covers. When those overlap, the energy density increases. As such, the specific energy at a point in the overlap is greater than it would be without overlap.

--

The intensity, I, of an electromganetic field is the power per area. It can be expressed as simply:

u = energy density
c = light speed
Intensity = u*c

--

Using paints, and pigments, color is subtractive. Using visible EM waves it's additive.

See attachment. Then see reality.
 

Attachments

htownhmgrow09

Active Member
reflective chart right out of marijuana horticulture states that aluminumffoil has 70-75% reflectivity , and white paint is at 85-93% and mylar of course 90-95% . but theree is an even better one called foylon so if yall are gonna argue about every damn thing im gona BUST OUT THE BOOK ON U KIDS. LOL JK i havent been growing for decades or n e thing like that but i did alot of research on my fav plant and i have some books . and hint wuts the best light set up for hid hps? one 1000w or 2 600w.
 
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