CFL vs HPS

ganjaluvr

ganjaluvr

Well-Known Member
its all about lumens my friend..

not wattage.

I mean sure, wattage plays a part.. because you need more watts.. why?

well, because more watts = more lumens; more lumens = much harder and beautiful heavy buds.

It's like the old saying go's.. "If you don't have the intensity (lumens) you won't get the density". ;)

But yeah, in the end.. lumens is what your after.


Hope that helped someone on here.. giving back to the RIU community is what I do. I had a lot of experienced people around here.. help me with

alot of my questions. They weren't dickheads about it either. Sure, we've got your usual asshole around here.. but hey, what forums doesn't?

am I right? yeeeeaaaahhhh... ;)

But anyhow.. have a stoney Saturday.

peace.
 
Milwaukee Buds

Milwaukee Buds

Member
Well actually heard that lumens has nothing to do with plants because lumens is actually just the amount of light that we see. But thank you both for the help
 
whitewidow2

whitewidow2

Well-Known Member
milwaukee - ganjaluvr is correct...

Hps will give more lumens per watt than cfls... hps is the way to go and you will notice a BIG difference
 
DoeEyed

DoeEyed

Well-Known Member
Yep a 400w HID light will far outperform 200w CFL's, there really isn't a comparison there. HID lights have much better penetration.
 
StaySmokin206

StaySmokin206

Active Member
whitewidow2 said:
milwaukee - ganjaluvr is correct...

Hps will give more lumens per watt than cfls... hps is the way to go and you will notice a BIG difference
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HPS is the way to go for sure, but lumens are a measurement of light intensity seen by the human eye. It basically comes down to light penetration like DoeEyed said.
 
bajafox

bajafox

Well-Known Member
that's like taking a knife to a gun fight, 400w hps all the way, just make sure it's ventilated right
 
darkdestruction420

darkdestruction420

Well-Known Member
hps, no contest, especially since your thinking of using half the watts if you went with cfls. Ive got 10 40w 2700 lumen cfls so they put out 27,000 lumens total while my 400w hps puts out 55,000 lumens. if 400w of cfl is torn up by the hps 200w will be even more torn up.
 
StaySmokin206

StaySmokin206

Active Member
darkdestruction420 said:
hps, no contest, especially since your thinking of using half the watts if you went with cfls. Ive got 10 40w 2700 lumen cfls so they put out 27,000 lumens total while my 400w hps puts out 55,000 lumens. if 400w of cfl is torn up by the hps 200w will be even more torn up.
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If lumens could add up like that, they are far less important in growing than people believe. Anyone ever used LED's? I use HPS and have no experience with LED's.
 
darkdestruction420

darkdestruction420

Well-Known Member
Read this-
"What this means is that if you put two lights the same distance from a point, and each light provides N photons per unit area at the point, with two lights you will have 2N photons per unit area at the point. Because intensity is a measure of the number of photons per unit area, the light is twice as intense, whatever unit you choose to use. Twice the lumens, twice the lux, twice the footcandles."
Makes sense, right?
 
StaySmokin206

StaySmokin206

Active Member
It makes sense other than the fact that lumens are a measurement that can't add up. Not saying that more lights isn't better, but lumens don't add up. If you put 2 things at the same intensity, it doesn't make it stronger, though it does cover more area and produce more light. Check it with a lux meter. Just put one CFL up then put 2 up, ill bet you get the same lumens both times.
 
riddleme

riddleme

Well-Known Member
Stay smokin, your argueing a losing battle, folks in the forum want to believe in lumens because understanding PAR (which is what really matters) involves math and reminds folks of algebra and trig UUgghhhhh don't want to go there, might have to learn something

I have trying to explain lights to folks since I joined this forum some have gotten it (less than 1% of the membership) I just posted another ditty today about it showing the lumens of the sun under different conditions with a light meter

I would take the CFL over the HPS everyday but that is not because of lumens or watts it is because of spectrum and PAR, the spectrum of most HPS actually sucks!!!! (though some are getting a bit better, at a higher cost)
 
skiweeds

skiweeds

Active Member
lumens are very important if you have more space. CFLs just don't have the light penetration and are more for smaller setups. spectrum is not a problem if you use MH instead of HPS during veg. the only LED lights that are good are extremely expensive because you need a lot of them. if you want huge, ultra dense, high times cover looking buds, hps is the way to go as long as the other conditions are right.
 
StaySmokin206

StaySmokin206

Active Member
skiweeds said:
lumens are very important if you have more space. CFLs just don't have the light penetration and are more for smaller setups. spectrum is not a problem if you use MH instead of HPS during veg. the only LED lights that are good are extremely expensive because you need a lot of them. if you want huge, ultra dense, high times cover looking buds, hps is the way to go as long as the other conditions are right.
Click to expand...
But with expensive LED's they can be as good as HID's correct? Not going out and buying any but just wondering.

@Riddle -- Yeah that's just how it is. Well although other people don't enjoy learning I would love to read any threads you have on lighting so if you do PM me or post them up :D Always looking to learn something
 
skiweeds

skiweeds

Active Member
same here, i like the idea especially with them producing almost no heat and using so much less electricity. heat can sometimes be a huge problem with HIDs. but for that money i would rather buy a CO2 tank and control unit.
 
StaySmokin206

StaySmokin206

Active Member
skiweeds said:
same here, i like the idea especially with them producing almost no heat and using so much less electricity. heat can sometimes be a huge problem with HIDs. but for that money i would rather buy a CO2 tank and control unit.
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Lol if I could afford it I would buy it all and have different growrooms. 1 outdoor in a nice greenhouse, one using HID's, one using LED's, some soil, some hydro, and the list goes on :D
 
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