CFLs and Temperature

So, I got a meter that reads temp and humidity.

Room temp is 75-80 degrees, but I took the sensor and put it at leaf level and it read 93 degrees...

I know temps are supposed to stay under 85 degrees if possible, but is that room temp or leaf temp? I don't know if it is possible to have the bulbs 1-2" away and maintain lower temps at that range.

leaf temp

and to get lower temps dont have intake fans, have a powerful fan pulling air out and holes in the bottom

i also suggest getting an in line fan for the out and nothing else

Inductor 4 In. In-line Duct Fan - DB204 at The Home Depot

How exactly would that inline fan be set up? Do you plug it or is it powered through something else?

just get two regular fans, place one on the lights at all times and one to keep good circulation in the room. I use a regular room fan to regulate the ventilation in there.

MonkeeMan said:

leaf temp

and to get lower temps dont have intake fans, have a powerful fan pulling air out and holes in the bottom

i also suggest getting an in line fan for the out and nothing else

Inductor 4 In. In-line Duct Fan - DB204 at The Home Depot

Click to expand...

totally using that fan. it's just right. i've got it air-cooling a 400w HPS and filtering the air, all in one.

Sword12- you have to add your own power cord to it so you could use your imagination if you wanted to add it to something like a switch or whatev.
-e

I understand the importance of keeping your plants near or below the 80F mark. But does anyone know if there is a minimum temperature that you should be keeping your cabinet at? I have the opportunity to place a cabinet somewhere but it will be in a very cool location, and I want to know whether the plants will survive 40-45F? And is there an ideal minimum temperature?

erised said:

totally using that fan. it's just right. i've got it air-cooling a 400w HPS and filtering the air, all in one.

Sword12- you have to add your own power cord to it so you could use your imagination if you wanted to add it to something like a switch or whatev.
-e

Click to expand...

Thanks for all the replys

The reviews for those inline fans say they don't push much air and they are noisy. What is your assessment of them? If they are very noisy I'd rather spend a few more bucks and get a quiet one. Ya can't draw too much attention when company is over.
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QuentinQuark said:

I understand the importance of keeping your plants near or below the 80F mark. But does anyone know if there is a minimum temperature that you should be keeping your cabinet at? I have the opportunity to place a cabinet somewhere but it will be in a very cool location, and I want to know whether the plants will survive 40-45F? And is there an ideal minimum temperature?

Click to expand...

to answer that question, no. your plants will not survive or grow strong at 40-45%. Keep room temp between 70-80. you can go to 85 AT MOST, try not to exceed 85.

I'm current running at temps ~89 consistantly now after bringing my space down from 100F daily. Plants have sped up nicely, and had another pop out of a cup today. Only a week .5 along though, heat severely stunts the plants growth and slows it down ALOT, but there both growing, and seem perfect right now.

So i'd say at most wouldn't be right really, seems fine during veg or at least so far for me, how about heats impact on flowering though?

Here was my initial idea - computer fans. One running on my left side of my box, for my hair *in*. For my air out i was proposing the same method, although the fan pointing out and instead of using infline fan or anything of that nature i was thinking of using a PVC pipe going up the side of my wall and out into the garage, and then getting an odor sock or somehting along those lines to put inside the PVC for odor control in the garage..even though its the most least used place in the house. Would this idea work? Inline fan i still dont completely understand..i can just plug that into a regular powerstrip for the fan to run? And my question for anyone who has used a computer fan method : How in the hell do you set up the fans to run without a motherboard. I go to an IT school and the only way im familiar with plugging in a computer fan is through the motherboard and the powersupply.

Have a grateful day

Plugging computer fans off of AC power....??

I use cell phone chargers for DC, as computers all output DC into there electronics. Preforably the higher Voltage the better. Gotta make sure its 110-120v in AC (this comes out of your walls), and 12v DC or lower for the fans (this is what the cpu fans need.) Another option is to remove or find a very weak power supply for a computer, it runs off of AC plugs into the wall, and coverts the AC to DC the fans need......Make sure you run the fans in there operating range voltage. Below and the will wear out fast, above, you may smoke it.

You can if you want to cut the Voltage and RPM's down parrallel 2 CPU fans. Lower noise though lower air movement.

Think out of the box.....I hate, utterly hate computers. Hey monkey, temps at 85F and steady.

Pretty simple.

Have an in and have an out - have 3 fans INSIDE blowing air around - 2 small fans pointing up at the lights and hitting the plants - and one in the upper corner on the opposite side of the outfan - blowing pretty much right on my lights

My temps are 83-85 - i have 10 lights right now for 2 plants, look great - want to add more lights but cant because of temperature going past 90 degree's if i put in 2 more lights(i have lights on the side walls also).

Im a sketchball and dont think posting pictures is a good idea but picture this if you could. A basic 3'x3'x4 or so, old school cabinet made of metal. Bathroom light strip with 4 slots all filled with 'y' connectors making 8 lights on top - and then another 2 three slot bathroom lightstrips; one on each side with only 1 blub being used on each side - They are mounted vertically, so that they are directing UP with the plants growth. so 8 on top and 1 on each side making 10 bulbs my temps are right at around 83-85 and i cant do shit as far as adding more lights.

IS there a way to regulate my temperature even more - or should i just stop with *so* many lights and just get a bigger one that has all those watt's in one ( evolight) or whatever.

*bump*

this is one of my biggest issues is temperature control and the lights that i want to add in - veg right now i've got about 250watts of 6500k. My flowering lights consist of a mixture of the lowwattage 6500k and (total of eight) 42W 2700K lights, some for my top strip and wanted to fill in two light sockets on each of the side strips, 2 lights on each side, i wanted to have around 220watts per plant for flowering, i cannot see this happening now though with my temperature issues.

Stay up, friends.