CFLs!!!!

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cajun rose circle

Active Member
How hot do those Feliz CFL bulbs get? I have a space with two T5 fixtures and was thinking of adding some supplemental light. This is for the flowering so the T5s are all red spectrum bulbs which get warm. Not 'too' hot but warm. I put in two stanley air blowers on each chamber while the red lights are on and the closet now stays between 70 - 75 f. I also have a large Vornado at the opening of the closet to keep the air moving more and another stanley blower and 2 small fans in the room outside the closet. All temp and humidity is now just right.

So I am wondering what kind of heat those CFL bulbs give off. Especially the red spectrums but info on the blues will help greatly as well.

Thanks.
 
Tym

Tym

Well-Known Member
No florescent light is anywhere near the heat of a HID..

You can touch them..

If you touch a HID, you will lose flesh and the bulb will explode in your face.
 
C

cajun rose circle

Active Member
Tym said:
No florescent light is anywhere near the heat of a HID..

You can touch them..

If you touch a HID, you will lose flesh and the bulb will explode in your face.
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I am just assuming or guessing maybe 90*f to maybe what, 110*f? Or do you not know the specific on that? The problem is that I have two spaces that are each 4' x 14" so the 4' x 4 bulb T5s work great. Ihave one each hanging horizontally from overhead. Then I have the same lights mounted vertically, long ways to give as much light as I can to the under growth. I was thinking a couple of lower watt cfls in 'built in ballast' reflectors. Two for each chamber to keep the power down but some how figure a way to install them as a supplement. The fans I have going are Stanley shop air BLOWERS and I don't have a problem with heat. Yet......
 
Y

Yeah Right

Active Member
cajun rose circle said:
I am just assuming or guessing maybe 90*f to maybe what, 110*f? Or do you not know the specific on that? The problem is that I have two spaces that are each 4' x 14" so the 4' x 4 bulb T5s work great. Ihave one each hanging horizontally from overhead. Then I have the same lights mounted vertically, long ways to give as much light as I can to the under growth. I was thinking a couple of lower watt cfls in 'built in ballast' reflectors. Two for each chamber to keep the power down but some how figure a way to install them as a supplement. The fans I have going are Stanley shop air BLOWERS and I don't have a problem with heat. Yet......
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I'm running 68w CFLs that I bought at Home Depot. They're 2700k. They get hot enough to burn leaves if you let things get to close. I found out the hard way during the stretch of flowering. I leave a minimum of 3 inches around the bulbs now.
 
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NoDrama

Well-Known Member
HiD lights are more efficient than CFL and therefore put out less heat per lumen than Fluorescent lights or CFl's do. In other words, if you get 90,000 lumens of CFL going, you will heat up the room faster than 90,000 lumens of HPS light. Now your concern is whether or not an anemic 45 watt CFL is going to make too much heat. Well it isn't its only a single CFL bulb, so you should be ok.
 
Gastanker

Gastanker

Well-Known Member
CFLs and T5s are essentially identical lighting systems just in a different shape. Equivalent watt CFLs put out just as much heat as equivalent watt T5s.
 
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