I Need More Light

T

thekevin07

Well-Known Member
I have 6x 600 watt HPS in a 9x5x8 gorilla tent. I want to add some 14000k MH for UVB and I don't know how many to add or what wattage.

My ceiling is full of radiant reflectors so i will have to go with vertical setups with no reflector or tube. An Ac will be blowing on them so they will stay cold.
 
SPLFreak808

SPLFreak808

Well-Known Member
Im pretty sure you could just throw in 3-6 more 600watt ceramic metal halide bulbs. But i would not walk in the room with them turned on especially if you are not using a glass reflector becuse cmh emits much more uvb than hps.
 
T

thekevin07

Well-Known Member
nomofatum said:
Bulbs: http://www.samsclub.com/sams/wolff-systems-maximum-9-9-uvb-bronzing-lamps/prod4150017.ip
Ballast: Fulham Worhorse 8 (200w)

Add sockets, a 1x4, mylar, and some wire and you have yourself a perfect supply of UVB for about 40 sqft.
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I like the electricity price and 2 of those ballasts could fit inline with each other in between the two rows of reflectors. I read some where that the UVB for florescence bulbs dissipates after a few inches from the bulb. Would these be better hanging vertically on the edges of the garden? Just trying to understand how to mount this stuff and not waste more money then I already have.
Thx!
 
nomofatum

nomofatum

Well-Known Member
thekevin07 said:
I like the electricity price and 2 of those ballasts could fit inline with each other in between the two rows of reflectors. I read some where that the UVB for florescence bulbs dissipates after a few inches from the bulb. Would these be better hanging vertically on the edges of the garden? Just trying to understand how to mount this stuff and not waste more money then I already have.
Thx!
Click to expand...
People are confused about how lights and distance works. People seem to think light gets weaker the further it travels, but that is not true, what is true is that light spreads as it travels if unrestricted. In our cases, if we line the walls with Mylar, it can only spread as far as the wall before it's reflected (98%) back. If you supply enough UVB for the space, it won't matter how far back it is. This confusion is further extended by reptile bulbs, they give a distance (unrestricted spreading) that a reptile would receive the required UVB dose with a single bulb, add Mylar and multiple bulbs and the distance becomes nearly meaningless.

Mylar reflects UVB, White does not.
Glass filters UVB greatly, so never expect UVB from a bulb with more then 1 layer of glass or from anything but an open fixutre (cooltube = no/little UVB)
Almost all modern bulbs have UVB filters on them unless a UVB warning is included in the documentation or spectrum documentation.

I would just mount them at the same height as your other lights and run them in strips between your HIDs. I run my tanning bulbs at the same height as my CMH and HPS fixtures. Run about 5w per sqft of the UVB 9.9 tanning bulbs and you will be happy with the results.
 
rob333

rob333

Well-Known Member
thekevin07 said:
I have 6x 600 watt HPS in a 9x5x8 gorilla tent. I want to add some 14000k MH for UVB and I don't know how many to add or what wattage.

My ceiling is full of radiant reflectors so i will have to go with vertical setups with no reflector or tube. An Ac will be blowing on them so they will stay cold.
Click to expand...
you are not pulling any good off 6 600w hps ?? think u may need to re think the way you grow ;) more light aint gunna do shit ;)
 
nomofatum

nomofatum

Well-Known Member
rob333 said:
you are not pulling any good off 6 600w hps ?? think u may need to re think the way you grow ;) more light aint gunna do shit ;)
Click to expand...
I guess that depends on your goal, HPS is great for weight, but not great at all for quality, not alone at least. If he is getting good weight and wants to up quality, he is looking down the right path.
 
T

thekevin07

Well-Known Member
rob333 said:
you are not pulling any good off 6 600w hps ?? think u may need to re think the way you grow ;) more light aint gunna do shit ;)
Click to expand...
tgab
nomofatum said:
People are confused about how lights and distance works. People seem to think light gets weaker the further it travels, but that is not true, what is true is that light spreads as it travels if unrestricted. In our cases, if we line the walls with Mylar, it can only spread as far as the wall before it's reflected (98%) back. If you supply enough UVB for the space, it won't matter how far back it is. This confusion is further extended by reptile bulbs, they give a distance (unrestricted spreading) that a reptile would receive the required UVB dose with a single bulb, add Mylar and multiple bulbs and the distance becomes nearly meaningless.

Mylar reflects UVB, White does not.
Glass filters UVB greatly, so never expect UVB from a bulb with more then 1 layer of glass or from anything but an open fixutre (cooltube = no/little UVB)
Almost all modern bulbs have UVB filters on them unless a UVB warning is included in the documentation or spectrum documentation.

I would just mount them at the same height as your other lights and run them in strips between your HIDs. I run my tanning bulbs at the same height as my CMH and HPS fixtures. Run about 5w per sqft of the UVB 9.9 tanning bulbs and you will be happy with the results.
Click to expand...
Thanks
 
C

CC Dobbs

Well-Known Member
thekevin07 said:
I have 6x 600 watt HPS in a 9x5x8 gorilla tent. I want to add some 14000k MH for UVB and I don't know how many to add or what wattage.

My ceiling is full of radiant reflectors so i will have to go with vertical setups with no reflector or tube. An Ac will be blowing on them so they will stay
nomofatum said:
People are confused about how lights and distance works. People seem to think light gets weaker the further it travels, but that is not true, what is true is that light spreads as it travels if unrestricted. In our cases, if we line the walls with Mylar, it can only spread as far as the wall before it's reflected (98%) back. If you supply enough UVB for the space, it won't matter how far back it is. This confusion is further extended by reptile bulbs, they give a distance (unrestricted spreading) that a reptile would receive the required UVB dose with a single bulb, add Mylar and multiple bulbs and the distance becomes nearly meaningless.

Mylar reflects UVB, White does not.
Glass filters UVB greatly, so never expect UVB from a bulb with more then 1 layer of glass or from anything but an open fixutre (cooltube = no/little UVB)
Almost all modern bulbs have UVB filters on them unless a UVB warning is included in the documentation or spectrum documentation.

I would just mount them at the same height as your other lights and run them in strips between your HIDs. I run my tanning bulbs at the same height as my CMH and HPS fixtures. Run about 5w per sqft of the UVB 9.9 tanning bulbs and you will be happy with the results.
Click to expand...

You are a fucking retard. Before you rant on with your idiotic opinions look at this, Moron. http://en.wikipedia.org/wiki/Inverse-square_law
Click to expand...
 
nomofatum

nomofatum

Well-Known Member
CC Dobbs said:
My previous post is confusing so let me be blunt. Inverse Square Law.
Click to expand...
Go back and read about inverse square law. That law is only applicable in an unconfined space, it describes how light spreads, in a reflective box it only applies to the average distance of the walls from the bulb plus the 2% loss of the reflector. You are demonstrating the confusion I spoke of.
 
nomofatum

nomofatum

Well-Known Member


Imagine what would happen if the walls were at 2r, 3r would never exist, light would be reflected and maintain strength minus the 2% loss per intersection with the walls.
 
C

CC Dobbs

Well-Known Member
nomofatum said:
Go back and read about inverse square law. That law is only applicable in an unconfined space, it describes how light spreads, in a reflective box it only applies to the average distance of the walls from the bulb plus the 2% loss of the reflector. You are demonstrating the confusion I spoke of.
Click to expand...
I understand it but I don't believe you do. The reflected light from your mylar is of very little use. It is nice and shiny though. The distance from a light source is of great importance and I am unsure why you think it wouldn't be.

Are you taking Introduction to Physics at the moment?
 
C

CC Dobbs

Well-Known Member
nomofatum said:
You should know what you are talking about before calling someone a "Fucking retard" or "Moron", when you end up being wrong, like now, it only makes you look very bad. :fire::bigjoint:
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I do believe that you are a moron. Are you against people speaking honestly?
 
nomofatum

nomofatum

Well-Known Member
CC Dobbs said:
I understand it but I don't believe you do. The reflected light from your mylar is of very little use. It is nice and shiny though. The distance from a light source is of great importance and I am unsure why you think it wouldn't be.

Are you taking Introduction to Physics at the moment?
Click to expand...
You don't have to believe me, just read up and actually understand the Physics. I took every Physics course offered by my old HS and College, I didn't go into the super advanced stuff, but I've got much more than the basics down, lol. You seem to still have some work to do on the basics. I will give you a hint, It's never as simple as applying 1 law and ignoring the limits your environment imposes.
 
C

CC Dobbs

Well-Known Member
nomofatum said:
You don't have to believe me, just read up and actually understand the Physics. I took every Physics course offered by my old HS and College, I didn't go into the super advanced stuff, but I've got much more than the basics down, lol. You seem to still have some work to do on the basics. I will give you a hint, It's never as simple as applying 1 law and ignoring the limits your environment imposes.
Click to expand...
Your hint is worthless in this case but thanks.
 
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