HPS vs Fluorescents.True champion.

Ok i wanna understand something. Everybody says that hps is better then fluors.. now on a 50,000 lumen base compairison 1 hps hid light is equal to 10 54 watt fluors.

now i know the hps has a light spectrum of 2100K and the fluors have a 2700K spectrum(on flowering bulbs).

how can people say HPS is really better? i dont see it.. and how does a 2100K spectrum have a higher yield?

these are 1 month into flower.. would hps be alot more?

and for one of those 150 watt hps at home depot or lowes, is that the same type of hps at a dro shop? or is the dro shop a different spectrum?

and if the 150 watt is the same what kinda ballast or reflector is safe to use for a closet?

Not sure. But im going with T5's once i get the money Anyways your plants are looking fine Just keep doing what your doing.

Hank.

but 10 54w cfl's is just shy of a 400w hps in $$ and 2100k is more red than 2700k

a 400 watt hps produsces 55,000 lumens so it would be 11, and Im pretty sure HPS has a better spectrum for flowering than fluoros.

I can not understand why people do not understand this. All you have to do, is do the math.. Hmmm.. (10) 54 watt CFL bulbs equals a 400 watt light.. Hmmmmm.. 10x54=540 watts of power used.. So for 140 more watts used you get what is not even the correct spectrum..... I will stick with my HPS light for flowering.

Just my thought on the matter.

I do use a 4' t-5 light with (6) 48 watt cfls for my veg stage though.

Lord Dangly Bits said:

I can not understand why people do not understand this. All you have to do, is do the math.. Hmmm.. (10) 54 watt CFL bulbs equals a 400 watt light.. Hmmmmm.. 10x54=540 watts of power used.. So for 140 more watts used you get what is not even the correct spectrum..... I will stick with my HPS light for flowering.

Just my thought on the matter.

I do use a 4' t-5 light with (6) 48 watt cfls for my veg stage though.

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I can not understand why people cant read posts right.. i know its the same light out put and same lumens( 1 hps vs 10. 54 watt fluors). but back to my question.

Is the 2100K spectrum the reason why HPS is better? is spectrum what makes your yield higher?

casue its the same light out put same lumens, but lower heat signature. better for confined spaces but the spectrum is 2700K not 2100K.

and like i was asking before

Is a 150 watt hps from home depot, lowes, or a hardware store the same spectrum as a hps in a hydro shop?

and if it is same spectrum,

What kinda reflector is safe to use?

i dont wanna use a reflector that will cause a fire.. so when i come home from work i see the pigs and fire department at my house along with the 5 o'clock news

You saw the part where it uses less power and therefor is cheaper to run right?

Plants like 2100K(red) better than 2700K. Don't ask us, ask mother nature about that one.

Its about wattage and how the bulb pushes out the Lumens. 54 watts can only push the light so far, Just because you have 10 of them dosent mean the light will travel as far and be as powerful as a 400watt HID light, were 400 watts can really pump out the lumens. The light is a lot more concetrated from the 400watt HPS.

mattso101 said:

Its about wattage and how the bulb pushes out the Lumens. 54 watts can only push the light so far, Just because you have 10 of them dosent mean the light will travel as far and be as powerful as a 400watt HID light, were 400 watts can really pump out the lumens. The light is a lot more concetrated from the 400watt HPS.

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but thats what im saying according to this chart it does

[SIZE=+2]Light Output Comparison Chart[/SIZE] Each scenario above represents approximately 50,000 lumens.

same light out put.. or am i reading this wrong?

Roullette said:

and like i was asking before

Is a 150 watt hps from home depot, lowes, or a hardware store the same spectrum as a hps in a hydro shop?

and if it is same spectrum,

What kinda reflector is safe to use?

i dont wanna use a reflector that will cause a fire.. so when i come home from work i see the pigs and fire department at my house along with the 5 o'clock news

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Yes it is the same spectrum I think it 2200k. I use a 150 watt hps from home depot, I kept it in its reflector just wired it up with a grounded plug that it. It would be way way better than than a bunch of cfls anyday

what type of reflector you use? just a random 150 watt + reflector?

I use the reflector it came build into.

ahh well i was looking at the single 150 watt hps bulbs. they had a regular bulb socket. not those huge ass ones that u need a ballast for. thanks for the replies and shit guys. much appreciated

Yeah you still need a balles to fire up all hps. 70watts to 1000watts. they all need a ballest. It cast me $90 canadain. I bet you could find it cheaper in the USA

mattso101 said:

Its about wattage and how the bulb pushes out the Lumens. 54 watts can only push the light so far, Just because you have 10 of them dosent mean the light will travel as far and be as powerful as a 400watt HID light, were 400 watts can really pump out the lumens. The light is a lot more concetrated from the 400watt HPS.

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i just posted this on a different post.. but this is the break down of lighting. if you can prove me wrong ill go HPS. only thing i cant find is what spectrum does for a plant. if it makes the yield bigger or what.



Theres a few things when it comes to lighting and i know for a fact alot of people never looked this deep into it. theres lumens, spectrum, PAR.

now based on a 50,000 lumen out put 1. 400 Watt HPS = 10. 54 Watt HO fluors.(1st pic)

now theres spectrum which this is where i can not find any type of information on how the plant uses a 2700K spectrum vs a 2100 spectrum. basicly how does the spectrum effect the plant.hps about 2100 and fluors about 2700K.(2nd pic)

then theres a PAR rating which is how strong the radiation comes off the bulb.. if to close it will burn.. kinda like when you goto the beach and in the summer you can feel the sun burning you cause its closer then it was durin the winter time (par-Photosynthetically Active Radiation). its just the radiation that the sun/bulb puts off..(3rd pic)

Now that you kinda have what im saying down.

I know a HPS can power light down to the lower branches really well and needs to be 3ft-4ft away other wise it will burn(high PAR rating). And since the fluors dont have a high PAR rating the rays it pushes out are weaker. so you can get the bulb inches way from the plants before they will burn allowing rays to penetrate to the lower leaves just like an HPS.

Hands down watt for watt the HPS is more efficient.
1. 400 watts HPS 50,000 lumens.
and
10. HO 54 watt fluors=540 watts using 123 extra watts to make 50,000 lumens.

I use a combo of HO flourecents and HPS. I like it, do what works for you.

mattso101 said:

Its about wattage and how the bulb pushes out the Lumens. 54 watts can only push the light so far, Just because you have 10 of them dosent mean the light will travel as far and be as powerful as a 400watt HID light, were 400 watts can really pump out the lumens. The light is a lot more concetrated from the 400watt HPS.

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what I wonder about your point is this....because cfl's run cooler, you can put them closer to your plants and you can strategically place them to get the most penetration....As opposed to one hps light that you can only have above your plants....and theres this ??? hps has to be farther away....if there was a way to measure light output from hps at 20 inches away....then measure light output of ten 45 watt cfl's at three inches away....Id wonder if the light intesity would be comparable???

fdd might be up to it^^^^ i saw on a earlier post he had some cool light meeter gadget