First cfl grow full grow recorded(pics)

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chronicj69

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playa869 said:
So after 2 weeks they are looking pretty good. Most of them have 8-10 leaves and are nice and green. Also since putting in 4 6500k cfl's they have grown significantly. I put another whole in for ventalation and finished putting tin foil all over the inside of the box. The temperature sometimes gets scary high like 95 but does usually drop to 85 or 90. I just started 18/6 light tonight which hopefully is a good thing. I promise some pics tomorrow!!!:blsmoke:
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ok man lookin forward to those pics! hmmm wonder why its gettin so hot? next time u get a few buck go invest in like a small computer fan to pull the hot air out of the box instead of just moving it around. just a thought lol. man im ripped off my ass right now lolbongsmilie
 
playa869

playa869

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yeah idk why either cuz there is two holes in the box and one fan going in(maybe i should turn it around aand have it blow out IDK) but i do have to put a blanket over it so no light seeps out(so no one sees light) but yeah hopefully temp. lowers!!!!
 
Hydro929

Hydro929

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chronicj69 said:
tinfoil works just fine...
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Tinfoil. It does not work just fine. It absorbs most of the light that hits it. If you're going to use it at least use the dull side because it is more reflective. It also absorbs heat and can create hotspots that can be hard on your plants. White paint or paper is much better. 87F is a bit hot but if you have enough air movement and ventilation it may be fine. As long as they aren'tdying I don't think you have anything to worry about. Good luck.
 
playa869

playa869

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Hydro929 said:
Tinfoil. It does not work just fine. It absorbs most of the light that hits it. If you're going to use it at least use the dull side because it is more reflective.
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How is the dull side more reflective, go look at some tin foil please lol..

Hydro929 said:
It also absorbs heat and can create hotspots that can be hard on your plants.
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Yeah at first it seemed to yellow some of the plants but not anymore!!!


Hydro929 said:
87F is a bit hot but if you have enough air movement and ventilation it may be fine. As long as they aren'tdying I don't think you have anything to worry about. Good luck.
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Yeah there is plent of air movement becasue of the fan and it doesnt even seem that hot but thats what the thermometer says..lol

and a hot summer day is in the 90's so...
 
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chronicj69

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Hydro929 said:
Tinfoil. It does not work just fine. It absorbs most of the light that hits it. If you're going to use it at least use the dull side because it is more reflective. It also absorbs heat and can create hotspots that can be hard on your plants. White paint or paper is much better. 87F is a bit hot but if you have enough air movement and ventilation it may be fine. As long as they aren'tdying I don't think you have anything to worry about. Good luck.
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eh well sometimes u got to go with what ya got and since hes not doing any hid it will not kill his plants as long as he keeps his heat below 95. that will kill your plants.the dull side?im no expert lol but isnt the whole point of it is to reflect back on the plants:wall:

neverless i think hes doing just fine just keep that heat under control u might see if u have any of those frozen gel packsin the freezer and when the heat creeps up on ya like that just through one in there and see if that helps:lol:
 
Hydro929

Hydro929

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Ok I don't want to make a big deal but you guys should definitely think about reading the FAQ. There's some pretty useful information. I highly reccomend this page. The bottom of it should clear up your misconceptions. Otherwise you look and sound to be doing fine. Just watch that temperature like chronic said and try to keep it down between 80-85. Not only that but hotspots may not be a problem currently but as your plant gets bigger you will have less space and may have problems. Just things to think about. Peace.
 
TeaTreeOil

TeaTreeOil

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Aluminum Foil:
Aluminum foil is no more than 55% reflective - if used, make sure that the dull side is the one that is used to reflect the light. When it becomes creased its reflectivity is even lower (around 35%.) It is also very dangerous to use because it creates hotspots easily, is electrically conductive, and is a fire hazard when it is in close contact with HID lighting. Attaching this to walls is a pain and usually using aluminum tape or glue is the best way. This should only be used as a last resort, and even then its usefulness is questionable.
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Aluminum is 90% reflective over the visible spectrum. 95% reflective average over the entire IR spectrum.

The dull side is more diffuse than the shiny side.

Mylar is aluminum metalized to PET. Foylon is apparently foil-laminated fabric(ALUMINUM FOIL ON FUCKING FABRIC?!)? They're also electrically conductive, I'd imagine. And have the same properties of aluminum when reflecting IR heat. So they'd be equally if not the superior 'fire hazard'. The nearer you get to a perfectly flat mirror finish the better you get reflection.

I've attached a comparison of a mirror finished aluminum reflector versus mylar and ESR(a 3M product).

I'm not saying aluminum foil is a mirror finish. But neither is mylar.

But it's far better than nothing. That last sentence shows clear bias. :eyesmoke:
 

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Hydro929

Hydro929

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TeaTreeOil said:
Aluminum is 90% reflective over the visible spectrum. 95% reflective average over the entire IR spectrum.

The dull side is more diffuse than the shiny side.

Mylar is aluminum metalized to PET. Foylon is apparently foil-laminated fabric(ALUMINUM FOIL ON FUCKING FABRIC?!)? They're also electrically conductive, I'd imagine. And have the same properties of aluminum when reflecting IR heat. So they'd be equally if not the superior 'fire hazard'. The nearer you get to a perfectly flat mirror finish the better you get reflection.

I've attached a comparison of a mirror finished aluminum reflector versus mylar and ESR(a 3M product).

I'm not saying aluminum foil is a mirror finish. But neither is mylar.

But it's far better than nothing. That last sentence shows clear bias. :eyesmoke:
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Mylar is not electrically conductive, nor is it as likely to crease as foil. They may prove to be an equally dangerous fire hazard. Mylar is also much more durable and cleans very easily. It is also around 97% reflective which makes it superior. I can't provide any facts as far as the heat absorbtion but I don't believe it absorbs as much heat. I'm not really saying foil is wrong. I even used it once as well. Mylar is superior however.
 
bobsmokeblow

bobsmokeblow

Active Member
nice to see some more of your pics, for your lighting cut cardboard to size and paint it in matt white lots better than tin foil
 
TeaTreeOil

TeaTreeOil

Well-Known Member
Hydro929 said:
Mylar is not electrically conductive, nor is it as likely to crease as foil. They may prove to be an equally dangerous fire hazard. Mylar is also much more durable and cleans very easily. It is also around 97% reflective which makes it superior. I can't provide any facts as far as the heat absorbtion but I don't believe it absorbs as much heat. I'm not really saying foil is wrong. I even used it once as well. Mylar is superior however.
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Mylar® PET(polyester) fiber is certainly not conductive. Reflective(aluminum metalized Mylar®) PET would be, it's coated in a metal. Hello? Metals are conductive.

It is not 97% reflective. Reflective Mylar® is 90-91% in the visible spectrum. And probably 95% in the IR range, just like aluminum, because it derives its reflectance from aluminum.

Coated with magnesium fluoride you can get aluminum up to 95% from UV to NIR. This is the standard for most high-end reflectors(basically coated sheet aluminum).

Maybe you're thinking of ESR, it's nearly 100% in the visible spectrum.
 
dj crane

dj crane

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i just stumbled upon this thread and i will be following from here on, however i did want to add that in my experience, while tin foil wont HURT your plants, it is not the best material to use, i am used to use it but switched to a flat white shower curtain, it works quite well
 

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