150w HPS Club and Resource Guide......

[bounty29]

I definitely plan on painting the walls, or doing something to increase reflectivity, after this grow is over. The plants are in there right now, and chugging along nicely, I don't feel the need to bother them. Making the walls more reflective would do nothing but help, I would never advise against it.

 

[Pipedream]

Agreed, when all things are going well, I too can't outsmoke my 150. However, I still want to give my ladies as much light as posible just for the general health of the plant. And, with a 150, every lumen is a precious thing not to be wasted. What you say it true.... by the time the light hits a wall and bounces back it is greatly deminished. Although in a lot of cases that deminished light is all that my lower bud-sites will get. I believe in the school of thought that says "let no bud be left behind"

Ever open the doors to your cabinet in a dark room? See how much it lights the place up? Without reflective material on the inside of the doors, all of that light would be lost. And, most of it hits below the canopy because of the angle of incident & reflection.

JMHO but it works for me. PD

 

[DrHydro]

Agreed, when all things are going well, I too can't outsmoke my 150. However, I still want to give my ladies as much light as posible just for the general health of the plant. And, with a 150, every lumen is a precious thing not to be wasted. What you say it true.... by the time the light hits a wall and bounces back it is greatly deminished. Although in a lot of cases that deminished light is all that my lower bud-sites will get. I believe in the school of thought that says "let no bud be left behind"

Ever open the doors to your cabinet in a dark room? See how much it lights the place up? Without reflective material on the inside of the doors, all of that light would be lost. And, most of it hits below the canopy because of the angle of incident & reflection.

JMHO but it works for me. PD

I agree...

 

[sugabear_II]

flat white is easy to do and will add reflectivity - I've also used the bubble wrap/insulation mylar and it will also add reflectivity - hanging mylar is actually not that hard - just tape it up in one corner and then stretch to the other corner on the top and let it hang down and put another couple pieces of tape - just don't try and do corners - one piece for each flat wall worked best for me in my big cab. Really all work and are a great idea - but I too ran my cab for at least one grow w/o painting the back wall - in the design of my cabinet I learned that having the bulb close to the canopy by using scrog was the best way to achieve what I wanted in the space I had and reflectivity was always a nice boost but not as important as overall canopy control.

-suga

 

[Arcane]

Has anyone ever been wealthy enough to mount mirrors? I would imagine that would provide almost 100% reflectivity.

 

[greenhead]

Has anyone ever been wealthy enough to mount mirrors? I would imagine that would provide almost 100% reflectivity.

Mirrors suck. Mirrors are absolutely one of the worst things that you can put in a grow room. A white wall has better reflectivity.

 

[Banjoboy]

flat white is easy to do and will add reflectivity

I see this idea of flat paint often. Wouldn't gloss or semi-gloss be more reflective, more durable, and less likeley to stain than flat paint?

BB

 

[eLiguL]

flat white is easy to do and will add reflectivity

I see this idea of flat paint often. Wouldn't gloss or semi-gloss be more reflective, more durable, and less likeley to stain than flat paint?

BB

Gloss is uneven and will create hotspots.

 

[sugabear_II]

I see this idea of flat paint often. Wouldn't gloss or semi-gloss be more reflective, more durable, and less likeley to stain than flat paint?

BB

I just go back to my old copy of indoor mj horticulture by Jorge Cervantes in which it explains that flat titanium white is the most reflective surface next to mylar. I think he explains why semi-gloss or gloss wouldn't be better but I forget - I just remember that flat titanium white is most reflective.

 

[Q_ba1]

ak-48 sativa pheno results

ak-48 sativa pheno results

...when the diamond mylar is in use
you can feel the 150 power














Nirvana ak-48 sativa pheno, grown 128 days / 105 flo
It was that what we are dreaming about, growing over 4 months...
and there was a little risk cuz they stopped the flowering for three weeks
fortunately I can be proud, and I am
Two females with no male flowers - regular seeds
Using hps 150 + 2cfl's
The result is 150g (5oz)

http://www.icmag.com/gallery/data/500/17409album_pic.jpeg
http://www.icmag.com/gallery/data/500/17409album_pic2.jpeg

Enjoy
Q_ba1

 

[green_grow]

wowsers !

 

[greenhead]

Q_ba1, nice ! Very impressive, and awesome yield !

Do you tie the branches to those poles that you have around the pots ? Do you use the poles to mainly keep the height in check or are they there to provide support for heavy branches/buds ?

I'd never heard of diamond mylar before. Does it come in a roll, like regular mylar ? It seems better than the regular mylar. It seems so smooth, with no crumples at all in it.

What are the dimensions of your cabinet ?

You only vegged for 23 days ?

Those are 5 gallon pots ?

Sorry for all the questions, lol.

 

[Q_ba1]

greenhead - yes, I tie the branches to those poles, at first I use them to mainly train the plants, after few weeks for providing support too
one plant was fimed and than much easier to control, the second one was hsted only

...very high phenos

Diamond mylar

The wide of roll is 1,4m

Added
The dimensions are 42x71x160cm (16x27x62inch)

Yes, vegged for 23 days

Pots are 15l its 3,3 gallon

I use canna terra flo and pk13/14, this time was no nutrients for a veg

 

[greenhead]

greenhead - yes.............

Thanks for the replies !

 

[jasonk]

wow Q_ba1, I have no plants going at the moment and normally dont reply when im in here, but couldnt resist commenting on such a nice crop. Good work to you and everyone Ive been reading lately, I need to move out soon and get that ball rollin again.

 

[Lemon]

... you are the 150 king

 

[eLiguL]

A chart to help you with reflective surfaces.

 

[greenhead]

I haven't heard of foylon until recently, but I've read a gazillion grow journals, and it doesn't seem like many people use it at all. Most people seem to have mylar on their walls, if they have anything at all. Why don't more people use foylon, since it's rating is slightly higher than mylar ? Is there any disadvantage to using foylon ?

Also, since flat white paint has a better reflectivity rating than semi-gloss, does this also apply to black paint ?

Some people paint the inside of their PVC intakes and outakes black inorder to block light, I did in my growbox. I wonder if there is some sort of difference between using flat black paint and semi-gloss black paint. I wonder if semi-gloss black is less reflective than flat black, just like with the white paint.

 

[eLiguL]

I haven't heard of foylon until recently, but I've read a gazillion grow journals, and it doesn't seem like many people use it at all. Most people seem to have mylar on their walls, if they have anything at all. Why don't more people use foylon, since it's rating is slightly higher than mylar ? Is there any disadvantage to using foylon ?

Also, since flat white paint has a better reflectivity rating than semi-gloss, does this also apply to black paint ?

Some people paint the inside of their PVC intakes and outakes black inorder to block light, I did in my growbox. I wonder if there is some sort of difference between using flat black paint and semi-gloss black paint. I wonder if semi-gloss black is less reflective than flat black, just like with the white paint.

Flat black reflects the least amount of light. The gloss/semi-gloss black would reflect better but the reflection will be uneven and have hotspots. Flat white reflects better than gloss/semi-gloss white because it distributes the light more evenly, also the color "white" is what does the majority of the reflecting and not the gloss. People use mylar because it is more readily available (I believe foylon is no longer in production but you have to look that up to verify) and also foylon is almost triple the price. Hope that helped.

 

[greenhead]

Flat black reflects the least amount of light. The gloss/semi-gloss black would reflect better but the reflection will be uneven and have hotspots. Flat white reflects better than gloss/semi-gloss white because it distributes the light more evenly, also the color "white" is what does the majority of the reflecting and not the gloss. People use mylar because it is more readily available (I believe foylon is no longer in production but you have to look that up to verify) and also foylon is almost triple the price. Hope that helped.

Thanks for the reply ! Ah, so foylon is much more expensive, I see. I did find one place online where they sold a 4.5 foot X 5 foot roll of foylon for $12.50. I also found another place where they said that it was no longer being produced, so maybe the places still selling it are getting rid of their stock.